Tools

A clean bike is a happy bike! Park Tool's Bike Cleaning Brush Kit is a four-piece brush set designed specifically to clean bicycles. Ergonomically designed and featuring dual-density, sure-grip handles, the BCB-4.2 kit includes: • 1 GSC-1 Gear Clean Brush • 1 Tapered Detail Brush • 1 Frame Cleaning Sponge/Bristle Brush • 1 Soft Bristle Soaping Brush

Park's BBT-32 is the perfect solution for the home mechanic installing and removing Shimano and ISIS Drive splined 20-tooth bottom bracket cups. Made from investment-cast steel, the BBT-32 utilizes a flat tooth profile to ensure maximum engagement with the bottom bracket cup and features 32mm wrench flats.

The Bottom Bracket Wrench removes and installs Shimano Hollowtech II, Race Face X-type, FSA MegaExo, Campagnolo Ultra-Torque and TruVativ Giga X-pipe bottom brackets. Laser cut for a precise fit, one end of the BBT-9 securely engages the 16 cup notches, while the other end engages the 8 internal splines of the crankarm adjustment cap.

Park's Bottom Bracket/Cassette Tool for Campagnolo is an indispensable tool for your Campagnolo drivetrain. It's for installing and removing all Record, Chorus, Centaur and Athena bottom brackets, and all Campagnolo cassette lockrings.

The CC-4 is a drop-in style gauge that measures bicycle chain wear. The laser cut CC-4 accurately measures a long section of chain and strategically comes in contact with the chain in three places, quickly and easily taking the guesswork out of knowing when chain replacement is necessary. A worn chain will cause poor shifting as well as accelerate drivetrain wear. The tool works on any 5 to 12-speed derailleur chain (including SRAM AXS) and is designed to accurately indicate when a chain reaches .5% and .75% wear, the points at which most chain manufacturers suggest replacement.

A dirty drivetrain causes poor shifting and unnecessary wear to expensive parts. The Chain Gang contains everything needed to quickly and easily clean the chain, freewheel cogs, and chainrings. The Chain Gang includes: - CM-5.3 Cyclone Chain Scrubber - GSC-1 GearClean Brush - 8 oz. bottle of Bio ChainBrite The CG-2.4 works on nearly any bike, including multi-speed, single-speed, and e-bikes.

Cleans bicycle chain quickly, easily, and effectively — without the hassle and mess of removing the chain from the bike. The Cyclone uses a large solvent reservoir, hundreds of rotating bristles, and a two-step cleaning process to get chains really clean, improve shifting performance, and extend the life of the chain and other expensive drivetrain parts. - Works with all multi-speed bikes (5, 6, 7, 8, 9, 10, 11, and 12-speed) as well as some single-speed models and e-bikes - Strong magnet at the bottom of the fluid reservoir holds metallic particles scrubbed from the chain - Special wicking sponge draws solvent from the chain as it exits, minimizing drips and mess - Sturdy handle makes the Cyclone easy to use and control - Holds 2 fluid ounces (59ml) of solvent

Heat-treated alloy tool steel, one inch base fits wrench or bench vise. Thin-wall construction allows use without removal of cones and locknuts. The FR-5 has 12 splines that are approximately 23.4mm across. - Fits Shimano, SRAM, Sunrace, Suntour, Chris King and other cassette lockrings - Fits the SRAM XX1 11-speed cassettes - Also fits Shimano disc brake lockrings - Always use a quick-release skewer to hold the tool in place and snug to cogs when loosening; for solid axles, use the axle nut

A worn chain shifts poorly and wears sprockets at an accelerated rate. Park Tool's Chain-Wear Indicator is a “go-no go” gauge designed to accurately indicate when a chain reaches .5% and .75%, the points at which most chain manufacturers suggest replacement. The updated CC-3.2 is longer, more accurate and features permanent measurement markings.

Park's Compact Crank Puller is used to remove Shimano Octalink, ISIS Drive and square-taper cranksets. It includes 2 rotating tips (16.3 and 11.3mm) to make the job easy. This is a great tool for your travel and home tool kit.

Park's Crank Puller is for removing crankarms on Shimano's splined, oversize, pipe-billet bottom brackets. It employs a long handle and a fine thread for the leverage and torque needed to remove tight arms. Park's unique rotating tip ensures smooth operation and long life. (The CCP-44 does not fit standard square or tapered bottom brackets.)

A favorite of shop mechanics for over 30 year's, Park's CCP-22 Crank Puller removes crankarms that feature square tapers, and those that fit on Power Drive and Power Spline bottom bracket interfaces. The long, comfortable, built-in handle and fine thread provide the leverage needed to remove even the tightest crankarms. And, there's a rotating tip to ensure smooth operation and long life.

Park's Double-Ended Cone Wrenches are designed for home mechanics. They're made of thin tool steel to fit the low-clearance adjusting nuts and cone flats on a variety of bearing assemblies. Each wrench is chrome plated for long life and available in popular combinations from 11 to 18mm. Most applications require a pair of cone wrenches. Call or stop by. We can recommend the correct sizes for your needs.

Also called a sleeping hub, the Dummy Hub slides into rear dropouts and replaces the rear wheel for chain cleaning and transport. The DH-1 works with all derailleur and 1/8" chain. The unique design allows the bike to be shifted and works with open dropout and thru-axle frames up to 12mm.

The Park FR-6 Freewheel Remover fits most 4-notch BMX and singlespeed freewheels. It can be held with a wrench or vise and its narrow profile allows use without removal of cones and locknuts.

Park's Fixed-Gear Lockring Wrench features 2 different radius hooked spanners for a precise fit, and easy removal and tightening of most fixed-gear lockrings. The HCW-17 fits rings with an outside diameter of 41 to 44mm. It also fits BMX cassette hub lockrings with external notches.

This dual-sided brush is specifically designed for cleaning hard-to-reach areas of the bicycle drivetrain. The long, stiff bristles of the GSC-3 are narrow enough to reach between the gears of tightly-spaced modern cassettes, while the slim contoured end is capable of picking grit and grime out of tight spaces such as derailleur pulley wheels.

Specially designed for crank bolts, freehub removals and pedal installs and removals, Park's Hex Tools are built for speed, leverage and comfort. Their super-precise hex heads and dual-density, ergonomic handle mean the HTs may soon become your new favorite tools.

Park's Home Mechanic Pedal Wrench is great for your home workshop and event tool box. This top-quality 15mm pedal wrench provides the leverage you need to remove stubborn pedals. It's made to last from heat-treated steel, and the handle has a vinyl grip for comfort.

Many chains use a master link that allows the chain to be installed and removed by hand. While master links don't require traditional chain tools, over time, dirt and corrosion can make it difficult to separate them by hand. Park's Master Link Pliers make removing and installing these master links quick and easy. Simply insert the specially sized jaws into the link and squeeze the vinyl-coated handles!

Park's Mini Chain Brute Chain Tool goes anywhere and features a V-shaped handle, a super-strong replaceable pin, and fine threads to make chain removal and installation a breeze. The CT-5 works on any derailleur chain, including Shimano Hyperglide and 9-, 10-, and 11-speed. It works for loosening tight links, too.

Park's Offset Brake Wrench utilizes a unique design that allows it to reach into tight areas that other wrenches cannot. The OBW-3 features a 14mm wrench on one end and the other end fits into a brake's tension springs to rotate the brake around its bolt for proper alignment. The OBW-4 features 10-, 11-, 12-, and 13-mm opening to fit most models of sidepull brakes.

A must-have tool for any rider or mechanic who services hydraulic brakes. The PS-1 Pad Spreader features a tapered edge designed to drive apart and reset hydraulic bicycle brake pads that may have been accidentally engaged. The head of the PS-1 mimics a section of disc brake rotor, with strong stainless steel construction and a long, vinyl-dipped handle for leverage and comfort. The PS-1 can also be used as a temporary stand-in for the rotor when testing or servicing the hydraulic system, negating the need to repeatedly remove and install the wheel. - Thickness: 1.95 mm - Length: 162 mm (6.4")

Made from tough steel and reinforced with extra material at the highly stressed wrench openings, Park’s shop-quality Pedal Wrench is built to easily install and remove pedals, and to last and last. It has 15mm and 9/16-inch precision openings to fit all pedals. And it boasts a long, round, vinyl-coated handle that won’t dig into your hand and provides optimum leverage. There's even a hole in the end of the wrench for hanging it on your toolboard.

Park’s Professional Cable And Housing Cutter is specifically for use on derailleur and brake cables and housing. It even makes quick work of hard-to-cut shift-cable housing. Its cold-forged, heat-treated-steel handles won't bend and its precision-ground jaws cut perfectly every time. Its dual-density molded grips are specially contoured for superior comfort and control. Plus, there’s a built-in cable-end crimper and a forming hole for reforming housing ends.

With today’s lightweight components, torque wrench use in the shop is no longer an option — it’s a must for every mechanic. The Park Tool TW-5.2 is a high-quality, ratcheting, click-type torque wrench that accurately measures and applies the proper amount of torque to a component’s threaded fastener(s). With a range of 2-14Nm, the TW-5.2 is designed for the lower torque settings that a shop or consumer would use for proper seat post, seat clamp and handlebar / stem applications. Comes with its own protective case.

Park's Cone Wrenches are made of durable tool steel and are nice and thin to fit on the small-clearance cones found on hubs and other bearing assemblies. Plus, they work as regular wrenches, too. They feature Park's special Y heads that put more material where it's needed for excellent durability and strength. Most applications require at least 2 cone wrenches. If you have questions please contact us and we can recommend the correct sizes for your needs.

Park's professional-quality, precision-sized spoke wrenches are hardened and chrome plated for long service. Wrenches are vinyl coated in one of four colors indicating the size at a glance. You will find these wrenches in virtually every professional bike shop and every shop mechanic's personal tool stash. Make sure you have the sizes you need in your home toolbox and bike bag.

Park's Tire and Tube Repair Kit is a riding essential. It features Park’s glueless Super Patch Kit and strong nylon Tire Levers for quick and easy flat repairs. The kit comes with 3 levers, 6 patches in a small container, and a piece of sandpaper (for roughing the tube to prepare it for patching).

• Updated to fit better in the hand with a more rounded, smoother shape • The precision sized SW-7.2 fits the three most popular spoke nipple sizes on the market • Nickel plated for years of service • Designed for the home mechanic. FIts the following size spoke nipples: • .127" (3.23mm) • .130" (3.30mm) • .136" (3.45mm)

Park Tool's professional-quality Snap Ring pliers are made from forged, heat-treated cro-moly steel with a return spring and vinyl dipped grips. The RP-1 has .9mm tips on straight blades for small, internal snap rings. The tips open from 22mm to 0 (tips touching).

Park Tool's professional-quality Snap Ring Pliers are made from forged, heat-treated cro-moly steel with a return spring and vinyl-dipped grips. The RP-3 has 1.3mm tips on bent nose blades for medium, external snap rings.

Park Tool's professional-quality Snap Ring Pliers are made from forged, heat-treated cro-moly steel with a return spring and vinyl-dipped grips. The RP-2 has 1.3mm tips on bent nose blades for medium, internal snap rings. The tips of the RP-2 open from 22mm down to 2mm (center to center).

Park Tool's professional-quality Snap Ring Pliers are made from forged, heat-treated cro-moly steel with a return spring and vinyl-dipped grips. The RP-4 has 1.7mm tips on bent nose blades for larger, internal snap rings. The tips open from 21mm down to 2mm (center to center).

Professional quality ring plier made from forged, heat-treated cro-moly steel with a return spring and vinyl dipped grips. The RP-5 has 1.7mm tips on straight blades for small, internal snap rings. The tips open from 22mm to 0 (tips touching).

• 15mm L-shaped hex wrench to fit Shimano rear thru-axle freehubs • Through-hardened industrial quality steel • Chamfered tips for a precision fit

Park combines the three most used bolt sizes into one convenient wrench. The 3-Way Sprocket Wrench sports 8, 9 and 10mm sockets made from forged chrome-vanadium steel in Park's classic Y-shape that offers plenty of leverage and a comfortable grip.

Forged with Chrome Vanadium (CR-v) steel, precision ground, heat-treated, plated and polished. The PAW-6 opens to 24mm and features a laser engraved measurement scale and dipped blue handle for comfort.

We put together this set of carefully chosen tools to do basic maintenance and cleaning as well as perform a wide variety of repairs and adjustments on just about any bicycle. A perfect way to start or add to your collection of shop-quality bicycle tools. The AK-5 includes a tough toolbox to protect your investment. Kit Includes: - AWS-1 3-Way Hex Wrench - BBB-4 Big Blue Book of Bicycle Repair - CC-4 Chain Checker - CM-5.3 Cyclone Chain Scrubber - CN-10 Professional Cable and Housing Cutter - CNW-2 Chainring Nut Wrench - CT-3.3 Chain Tool - DCW-1 Double-Ended Cone Wrench: 13/14mm - DCW-2 Double-Ended Cone Wrench: 15/16mm - DCW-3 Double-Ended Cone Wrench: 17/18mm - DH-1 Dummy Hub - DT-2 Rotor Truing Fork - FR-5.2 Cassette Lockring Tool - GSC-1 GearClean Brush - HCW-16.3 Chain Whip/Pedal Wrench - HXS-1.2 Professional L-Shaped Hex Wrench Set - MLP-1.2 Master Link Pliers - PAW-12 12" Adjustable Wrench - RR-12 Tape Measure - SD-2 #2 Phillips Screwdriver - SD-3 3mm Flat Blade Screwdriver - SW-0 Precision Spoke Wrench: .127" - SW-2 Precision Spoke Wrench: .136" - TL-1.2 Tire Lever Set - TWS-3 Torx Compatible 3-Way Wrench - VC-1 Valve Core Tool

Park Tool introduced the bicycle world to the 3-way hex wrench set over 30 years ago. Our 3-way wrenches fit perfectly in the palm of the hand and provide excellent leverage, making them a favorite of countless shop mechanics worldwide. AWS-3 FEATURES - 2mm, 2.5mm, and 3mm hex set - Wrenches made from industrial tool steel, through hardened and tempered for long life - Chamfered tips for a perfect fit

Shop-quality, adjustable torque driver that limits torque applied to fasteners, preventing over-tightening and damage to lightweight components. The ATD-1.2 features all-metal internal construction with a comfortable, ergonomic composite molded grip. Each tool is assembled and calibrated at Park Tool's factory in Minnesota.

Big and powerful, Park's Adjustable Wrench is forged from steel and chrome plated for maximum durability. Its jaws open up to 36mm and the torque-friendly, 12-inch handle is vinyl dipped for comfort.

Removes and installs crank caps on Shimano® Hollowtech II® cranks. Includes built in hook to lift the safety plate, speeding crank removal. Steel, investment cast body provides good leverage and includes an option to use with an 8mm hex wrench for removing seized caps.

Park's AV-1 Axle Vise makes repairing and overhauling hubs easier than ever. It prevents your axle from spinning while work is done on the hub and it has two different size receptacles so it will work with both front and rear axles.

A great shop accessory made to hold a wide variety of axles, spindles and any Park Tool Freewheel Remover/Lockring Tool. Made from precision extruded aluminum.

The 4th edition of the Big Blue Book of Bicycle Repair is updated with the latest information, procedures and techniques and covers everything from minor adjustments to complete overhauls. The BBB-4 features clear, step-by-step instructions, high quality color photos and useful charts and graphs to thoroughly explain and demonstrate hundreds of repairs. Written by one of the world’s leading authorities on bicycle repair and maintenance, Park Tool Director of Education, Calvin Jones, the Big Blue Book is the perfect reference guide for nearly any level mechanic and every bike. New information and topics included in the BBB 4th edition: - 12-speed and 1x drivetrains - Tubeless tires - Disc brakes - Electronic shifting - New wheel building content - Updated headset and bottom bracket standards - Updated torque specifications - Updated troubleshooting tables

The BBP-AOS is used in conjunction with the BBP-1.2 Bottom Bracket Bearing Press Kit to extract press fit bottom bracket bearings, cups, and adaptors. The BBP-AOS utilizes an expanding collet and extractor cup system to safely remove bearings without requiring impact. Also included are eight installation drifts for pressing bearings into pre-installed cups. - 8 precision-machined extractor cups and 5 hardened collets for compatibility with most bearing IDs and bearing/cup ODs - 8 installation drifts for standalone bearing installation - Organized in a convenient storage case - Full list of compatible bearing inner/outer diameters found on instructions/parts diagram NOTE: The BBP-AOS requires the BBP-1.2 Bottom Bracket Bearing Press Set for use. The BBP-1.2 and BBP-AOS are also available as a complete set (part # BBP-2).

A precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 12-notch tool fittings, including Chris King ThreadFit T47 & ThreadFit 30 bottom brackets. Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive. Fits 12-notch bottom bracket tool fittings with a major diameter of 50–53 mm and a minor diameter of 48.2 mm, including: - BBInfinite T47 - Chris King ThreadFit T47 - Chris King ThreadFit 30 - Enduro BBRight Torqtite - Hambini T47 - Rotor T47 External 30mm - Rotor BBright, BB30, BB386EVO, and PF30 thread-together

A precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 16-notch tool fittings, including Shimano XTR BB93, Dura-Ace BB9000, and Token bottom brackets. Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive. The BBT-49.3 features integrated threads for full compatibility with the Park Tool BBT-RS Bottom Bracket Tool Retaining System (sold separately). The BBT-RS uses an adjustable spring-based tension system to apply consistent, adjustable pressure to the tool, ensuring full engagement with the tool fitting and preventing slippage. Fits 16-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 39-40 mm and a minor diameter (inside of notches) of 37.6 mm, including: - Shimano XTR BB93 - Shimano Dura-Ace BB9000 - Token Also fits chainring lockrings on Shimano STEPS square spindle e-bike systems including: - E6000 - E6002 - E6050 - Replacement for Shimano TL-FC38 tool - 3/8" drive fitting

A precision CNC-machined aluminum tool for the installation and removal of select components with 16-notch tool fittings, including bottom brackets, center lock disc brakes, and e-bike motor lockrings. Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive. The BBT-69.4 features integrated threads for full compatibility with the Park Tool BBT-RS Bottom Bracket Tool Retaining System (sold separately). The BBT-RS uses an adjustable spring-based tension system to apply consistent, adjustable pressure to the tool, ensuring full engagement with the tool fitting and preventing slippage. Fits 16-notch tool fittings with a major diameter (outside of notches) of 44–45 mm and a minor diameter (inside of notches) of 42.7 mm, including: - Shimano BB80, BB5700, XT BB70, BB51, and previous external bearing threaded bottom bracket cups - Threaded bottom bracket cups from Campagnolo, Chris King, FSA MegaExo, Hope, SRAM/Truvativ GXP, Race Face X-type, Surly, Wheels, Fulcrum, and others - Center lock disc brake rotor lockrings - Bafang BBSH, BBS02 mid-drive motor lockrings - 3/8" drive fitting

A precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 12-notch tool fittings, including SRAM BSA DUB, Race Face Cinch, Rotor BSA30, and others. Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive. The BBT-79.3 features integrated threads for full compatibility with the Park Tool BBT-RS Bottom Bracket Tool Retaining System (sold separately). The BBT-RS uses an adjustable spring-based tension system to apply consistent, adjustable pressure to the tool, ensuring full engagement with the tool fitting and preventing slippage. Fits 12-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 45–47 mm and a minor diameter (inside of notches) of 44 mm, including: - SRAM BSA DUB - Race Face Cinch - Rotor BSA30 - Zipp Vuma - Hawk Racing BB3086 - and more - 3/8" drive fitting

Bottom brackets have some of the highest torque specs of any component found on a bicycle. Despite this, some bottom bracket cups feature tool fittings that allow mere millimeters of engagement, which can be a problem when attempting removal or installation. Solution: the Park Tool Bottom Bracket Tool Retaining System. Used in conjunction with nearly any Park Tool bottom bracket tool, the BBT-RS uses a spring-based tension system to apply consistent, adjustable pressure to the tool, ensuring full engagement with the tool fitting and preventing slippage. The BBT-RS can be configured for use with the vast majority of threaded and thread-together bottom bracket standards. The BBT-RS features an M8 threaded rod and a double-sided adapter nut with M12 and M15 threads, allowing it to thread directly into any compatible cartridge bottom bracket. The M15 adapter can also be used to install any of Park Tool's nine aluminum bottom bracket tools, all of which feature integrated threading for use with the BBT-RS. - Washer diameter: 57 mm (2.25") - Rod length: 175 mm (6.9") - Rod threading: M8 x 1.0 - Adapter nut threading: M12 x 1.0 & M15 x 1.0 Compatible with the following bottom bracket styles: - Threaded cup - Thread-together - Cartridge - Cup-and-cone Compatible with the following bottom bracket tools: - The following Park Tool socket-style aluminum bottom bracket tools: - BBT-27.3 - BBT-35-12 - BBT-35-36 - BBT-47-12 - BBT-47-16 - BBT-49.3 - BBT-59.3 - BBT-69.3 - BBT-79.3 - Wrench-style bottom bracket tools with a handle (e.g. Park Tool BBT-9, BBT-29, HCW-4) - Bottom bracket tools with external wrench flats (e.g. Park Tool BBT-19.2, BBT-22)

Park's HHP-2 accurately aligns and presses 1-, 1-1/8-, 1-1/4- and 1.5-inch headset cups into your frame's headtube. It features a quick-release design for fast tool installation and removal, extra-long handles for superior leverage and stepped bushings for precise cup alignment. This versatile tool also presses cartridge bearings and cups into one-piece bottom bracket shells and holds fixed-cup wrenches in place when removing or installing adjustable-type bottom brackets.

A great way to hold small parts, tools and components during a repair, Park Tool's Benchtop Overhaul Mat features multiple small pockets and one large work area. It's perfect for suspension work or to organize parts for installation. • Made of a rubber-like PVC • Cleans easily and looks great on any bench • Measures: 14.7” x 7” (38cm x 18cm)

A handy tool designed to make installation and removal of bicycle electronic shifting wires and batteries quick and easy. The durable composite body features our iconic three-way wrench shape and prevents scratching of expensive components. Angled ends allow for safe installation and removal of Shimano Di2 E-tube EW-SD300; wires in tight spaces. Universal coin cell tool helps remove and install battery covers on SRAM AXS and other electronic accessories. - Compatible with Shimano Di2 E-tube, EW-SD300 wires (nominally 3 mm OD connector) - Not compatible with Shimano Di2 E-Tube EW-SD50 wires (nominally 5 mm OD connector) — use the Park Tool EWS-1

Park's Bladed Spoke Holder is a must for building and truing wheels that feature bladed spokes. It has 4 different size slots to fit a wide variety of bladed (aero) spokes from .08 to 2mm wide. It holds them safely in place to prevent twisting as you turn the nipple to true and tension the wheel.

The BBT-30.4 Bottom Bracket Bearing Tool Set is designed and built to install and remove the bearings used in BB30, PressFit 30 (PF30), 386EVO, BBright and PF121 bottom bracket systems. The BBT-30.4 features a bushing set used in conjunction with a head cup press to quickly and precisely press the BB30 and PF30 bearings in the bottom bracket shell. The included BB30 bearing remover works from inside the shell to easily push out bearings.

A precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 12-notch tool fittings, including Praxis Works® M30 bottom brackets. Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive. Fits 12-notch bottom bracket tool fittings with a major diameter of 48–50 mm and a minor diameter of 46.3 mm, including: - Praxis Works® M30

The BBT-4 is made for the installation and removal of 6-notch SC-S and AC-H cartridge cups used on sealed cartridge bottom brackets. These bottom brackets have six notches around the outside of each cup. The handle of the BBT-4 is vinyl coated for comfort. The major diameter of the tool is nominally 44mm, and the minor diameter 38mm. The BBT-4 is compatible with the following sealed cartridge bottom brackets: • Campagnolo Veloce • Xenon • Mirage • Daytona • Avanti

The BBT-29 is a double-ended bottom bracket wrench designed to fit 16-notch bearing cups with an outside diameter of 39mm (e.g. Shimano Dura-Ace 9000 series and XTR 980 series) as well as 16-notch bearing cups with an outside diameter of 48.5mm (e.g. FSA MegaEvo).