Install hollowtech bottom bracket

Last UpdatedMarch 5, 2024

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The BBT-9 is used to remove and install Shimano Hollowtech II and FSA MegaExo bottom brackets. It is available in threaded and press-fit options. View More Close HOLLOWTECH technology is an ultra-lightweight hollow crankarm created by SHIMANO with the company’s own proprietary forging technology that also maintains rigidity. Bottom bracket upgrade, what size do I nee 9% off retail $22. View More. HollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability. This crank also acts as the bottom bracket bearing axle. Hollowtech 2 - Bearing Change: My quick description how I wrestled with Shimano bottom bracket in order to replace bearings rather than spending money for new cups/bearings set. Overview. SHIMANO TIAGRA - Bottom Bracket - Threaded - HOLLOWTECH II - 68/70 mm shell width The SHIMANO TIAGRA bottom bracket uses a new seal construction for long-lasting performance. SM-BB52. SAINT M820 Series. Using other tools may damage the tool. 7 83 ratings. The fitting tools that come with Hambini BB’s are designed to be used with M12 studbar or presses. 5mm spacer fitted to the drive side. Item no. FC-M7000-11-1. Available in at least six weeks. SHIMANO DURA-ACE - Bottom Bracket - Threaded - HOLLOWTECH II - 68/70 mm shell width. In order to remove your press fit bb, you will need some tools to do that. M12 or 1/2″ studbar and nuts are acceptable, a press makes the job easier. It is not as hard as you may think. HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency. Features: Designed for a perfect fit with Hollowtech II 24mm crank spindles; Anodized aluminum cups are high strength and lightweight; Specifications: Bottom Bracket Shell Width: 68mm (BSA), 70mm (Italian) Spindle Interface: Hollowtech II; Color: Silver HOLLOWTECH technology is an ultra-lightweight hollow crankarm created by SHIMANO with the company’s own proprietary forging technology that also maintains rigidity. USP. USAGE. One-piece cranks are found on some older Schwinn® bicycles, many children’s and BMX bikes, and on many department store-type bikes. SHIMANO TIAGRA 4700 Series. For the installation and removal of Shimano Hollowtech II bottom brackets. I've got a few hundred miles on it now and it's holding up perfect. Shimano mountain bottom brackets have longer threads, at least on the drive side, to account for the spacers you would use for a mountain crank, particularly in a 68 mm shell. SHIMANO ALIVIO - Bottom Bracket - Threaded - HOLLOWTECH II - 68/73 mm shell width - Trekking. 98 $ 24 . to/36auvuGPark grease: https://amzn. Weight: 100 grams. One end of the BBT-9 securely engages the 16 notches of the bottom bracket cups, while the other end engages the 8 internal splines of the crank arm adjustment cap. pdf 0. View More Close For installation and removal of HOLLOWTECH II/2-PIECE CRANKSET bottom bracket cup tool; For installation and removal of disc brake rotor lock ring for 20 mm axle/15 mm E-THRU axle hub; USP; Offset design allows turning the tool without touching the chain stay; Precision laser cut profile for a secure fit Tool Adapter for HOLLOWTECH II Bottom Bracket. 49 shipping costs. 00. FREE delivery Sat, May 11 on $35 of items shipped by Amazon. Feb 11, 2019 · To keep this on topic (press fit bottom brackets that last), I'm posting an update on the bottom bracket I ordered in post #6 in this thread. Fully loosen any pinch bolts on the left side crank. Oct 18, 2013 · BIKEHAND Bike Bicycle 16-Notch 41mm External Bottom Bracket Install Removal Tool - Compatible with Shimano BBR60, MT800 & Other 16-Notch Bottom Bracket Cups 12 $24. $3300. SLX - HOLLOWTECH II - MTB Crankset - 1x11-speed. SHIMANO DEORE XT - Bottom Bracket - Press-Fit - HOLLOWTECH II - 89. See the illustrations for band type, bracket type, and chain case stay type. Dad's Axum #mtb #mtblife #trail #diy My Amazon Store: https://www. For installation and removal of disc brake rotor lock ring for 20 mm axle/15 mm E-THRU axle hub. 19% VAT, plus €4. Perfect for 1x11 MTB drivetrains, the SLX FC-M7000-11-1 crank uses a new 3D composite chainring for improved driving rigidity. If you have a 30mm spindle, Park Tool makes a really good removal tool, the BBT-30. Hello, fellow cyclists! A carbon road bike has arrived at our workshop. 4. amazon. Additionally, the BBT-9 includes a tool that removes and installation of 8-point Shimano Jun 28, 2023 · There are two external bottom bracket standards: 68mm/73mm and 83mm. You will need the following tools: Bike stand – highly recommended, but not essential. Threaded bottom bracket shell width (mm)|68. Note that you will need a Hollowtech bottom bracket tool to do the install, which is unfortunately more expensive than the BB itself. More Buying Choices. Questions or comme Mar 18, 2022 · BBright. Threaded bottom bracket shell width (mm)|70. Assuming your bike is fitted with either a standard BSA threaded square tapered bottom bracket or a Hollowtech ll / SRAM GPX bottom bracket. Hi all, I am in the process of trying to install a Q128C based system from BMS Battery on my road bike. Gold color for SAINT. The FC-R9200 is offered in even shorter crank arms lengths to offer fit options for Press-Fit Bottom Bracket for BB90/95, BB86/92, BB30, PF30, BB Right, BB386 w/Ceramic Bearings for 24mm Shimano Hollowtech II Road/MTB Crankset, Compatible w/Trek, Cannondale, Cervelo Frame. Full Speed Ahead (FSA) produces world class bicycle components for road cycling and mountain biking and we support many of the world’s leading road and mountain bike teams. Jan 14, 2020 · If your bottom bracket shell is 73mm wide, you only need one 2. This tool fitting is also found on some disc brake rotor lockrings. The addition of HOLLOWTECH II technology integrates the bottom bracket axle with the right crankarm for more stiffness and a weight savings to achieve a high-dimensional balance. I had calculated my gear ratio, and swapped out the middle ring. 5/92 mm shell width With smoot rotation and better sealing performance, the SHIMANO XTR bottom bracket is durable for mountain bike usage. Turn the left side crank cap counter-clockwise and remove. FIND A DEALER. My pedaling is now smooth and relatively silent again. youtube. BB30-OUT for 22/24mm Spindle (SRAM / GXP) Installation / Service; BB30-OUT for 24mm Spindle (Shimano) Installation / Service; Eccentric (EBB Installation. Shimano TL-FC32 Bottom Bracket Tool Hollowtech II. 30MM DRIVE / 28MM NON-DRIVE. Designed specifically for the removal and installation of II chain sets and Bottom brackets. One piece of steel forms the crank arms and goes from the pedal, through the bottom bracket, to the other pedal. For installation and removal of HOLLOWTECH II/2-PIECE CRANKSET bottom bracket cup tool. Press-fit. (16) rate now. com to ma The bottom Bracket hole needs to be free of obstructions, usual obstructions are Di2 wires and bolts holding cable guides and internal steps. Ships Free. This new tool serves the same function as the older BBT-9 model: to install and remove Shimano Hollowtech II bottom bracket cups (as well as other brands using the same spline pattern, such as Race Face or Truvativ). SHIMANO 105 5800 Series. 98 $ 7 . Ensure that the crankset is properly aligned and tightened. The bottom bracket pictured is a HollowTech II U New model Shimano BBR60 bottom bracket for the Ultegra groupset. For the Hollowtech bottom bracket, get a normal right side PAS with 12 magnets, unscrew the right ballbearing, drop the sensor ring in then refit. Currently Sold Out. How to install a Shimano Hollowtech II style crank with a Chris King bottom bracket. View More Close Oct 31, 2021 · I am installing Shimano Hollowtech cranks with the bottom bracket for real. Jan 12, 2016 · In this tutorial we will install the Hollowtech II bottom bracket system. com/shop/mtbalexShop at Nov 13, 2021 · The Hollowtech II bottom brackets provide the best balance of stiffness, strength, weight and rotating performance. The first of the new wave of bottom bracket designs broke in 2000 when Cannondale unveiled BB30 at the Tour de France. Install was a breeze, pressed in one side then screwed the cups together and that draws the opposite side in. Nov 28, 2021 · 86. #1. GRX. 20028141. 5mm spacer on the drive side - so a 68mm or 83mm shell will have one drive side spacer and one non-drive side spacer, while a Feb 2, 2024 · Install the crankset onto the Hollowtech bottom bracket, following the manufacturer’s instructions. With HOLLOWTECH II crank arms to ensure light weight and Shimano's class-leading chainring designs, the FC-R9200 won't let you down. 12. It uses a 68mm wide shell for road bikes, 73mm on mountain bikes, with a 34. 5mm. Feb 13, 2023 · Tool kit: https://amzn. PF30A Outboard ABEC-3 BB for 24mm Cranks (Shimano) - Black. 6. Features: Updated version of the TL-BB12 tool accepts up to 107mm wide BB's. Only 2 left in stock. Get Fast, Free Shipping with Amazon Prime. 37BB Shell Width (mm): 68 , 73Defined Color: BlackBB/Frame Interface None of these developments have fundamentally altered the fitting procedure, though, which has in essence remained at “put bottom bracket in frame, put cranks on axle” for ages. My bike uses 2006 era Shimano 105 Hollowtech cranks and matching bottom bracket. It has been ridden extensively without proper maintenance, so many components of the Shimano M770 Hollowtech II bottom bracket review | BikeRadar The DURA-ACE FC-R9200 crank performs two vital functions: transferring your pedaling effort into the drivetrain and ensuring the fastest, most precise front shifting available. INSTALLATION Threaded bottom bracket INSTALLATION Threaded bottom bracket List of tool combinations Use the tools in the correct combination. Pull left arm off spindle by hand. 4. Aug 14, 2015 · Crank Removal. 11€. 00 your price $20. SHIMANO SLX - Bottom Bracket - Threaded - HOLLOWTECH II - 68/73 mm shell width. With smoot rotation and better sealing performance, the SHIMANO XTR bottom bracket is durable for mountain bike usage. Hardened steel for rigidity and durability. FREE Returns. Your best options are: Taking the bike to a bike shop and seeing if the threads can be salvaged. Use the Park Tool BBT-9 or BBT-10. The bottom bracket ensures that your crank rotates smoothly in the frame. See Bottom Bracket Tool Selection: Threaded and Thread-Together to determine the correct tool. Shimano® cranks use a proprietary eight-pointed star driver. For such a cheap part, it really made a world of difference. : 1. BB86 for 29mm Spindle Installation / Service; BB30 Outboard Bottom Bracket. 98 0:20 Jul 27, 2022 · For Shell Widths: 68mm and 70mm. COMPATIBLE WITH : - PRAXIS M30 CRANKS. 5/92 mm shell width With better sealing and rotation the SHIMANO DEORE bottom bracket delivers high driving efficiency. Two tools in one, the open end will fit most externally bearing BB's whilst the opposite end features. Aug 4, 2021 · Tips and advises:- good to use a torque wrench with specific torque values for all the bolts and screws tightening, but if you didn’t have one, you can simpl Dec 13, 2023 · Italian Threaded Bottom Brackets. Another detail with a small difference is the lengths of the threads on each variant. If you need to use a bottom bracket mounted chain guide or derailleur, then you'll also need to remove the innermost 2. Installs with common socket-style, 16-notch tools such as the classic Shimano TL-FC33, Park Tools May 19, 2019 · you can't use that KT-V12L, it's for square taper bottom bracket with a long spindle (68x122 or 73x127). SM-BB93. Options available for steel or ceramic bearings. For example, I have a 73mm bottom bracket shell, which the BB93 bearing will fit to, but the crankset I ordered needs a 68 or 70mm shell. The GRX, which is a gravel component, is built for dirt, so you can choose the BB-RS500-PB for gravel or the SM-BB72-41 for road. BB-RS500-PB. Free delivery options. Shimano XTR BB94-41A Press-Fit Bottom Bracket. And buy a square taper-compatible crankset. The BBR60 is a solid bottom bracket replacement known to be as reliable as any other Shimano item money can buy. May 29, 2020 · Remove all the dirt and grease left behind. Average weight. With better sealing and rotation the SHIMANO DEORE bottom bracket delivers high driving efficiency. I have been going back and forth with BMS Battery and have kind of hit a wall. Begin by removing both cranks. SHIMANO XTR - Bottom Bracket - Threaded - HOLLOWTECH II - 68/73 mm shell width. SHIMANO DEORE - Bottom Bracket - Press-Fit - HOLLOWTECH II - 89. 92mm) x 24 TPI, a shell width of 70mm, and the installation can be either external or internal. MegaExo Bearing Bottom Bracket Installation Instructions . Shimano’s Hollowtech II system, first seen on XTR in 2003, found on XT and Saint in 2004 and LX and Hone for 2005, is an entirely different animal. The story began with BB-4600 which seems to be fine for 6 months, and then suddenly, at one evening a… Shimano Tiagra BB-RS500 Hollowtech II Italian Bottom Bracket Specifications: Frame Interface: Italian Threaded Spindle Interface: 24mm (Shimano Hollowtech II, FSA MegaExo, Surly OD, FSA MegaExo Light, RaceFace EXI) Bottom Bracket Shell ID: 36 Shell Width: 70mm Color: Silver Weight: 92g This product was added to our catalog on October 21, 2019 The Park Tool BBT-9 is used to remove and install select threaded bottom brackets with 16-notch tool fittings, including Shimano®, SRAM® GXP, Chris King®, Campagnolo®, and many others. to/3HSogiBBudget Crankset with Hollowtech II BB: https://amzn SHIMANO DURA-ACE Threaded Bottom Bracket 68/70 mm shell width. About this item. BB-MT800. All you need is the press for this bicycle bottom bracket. The bottom bracket axle is steadily supported by the wide placed bearings on the basis of HOLLOWTECH II technologies providing highly-efficient power transfer. Email, call, or text to May 13, 2013 · Also, be careful to make sure the crankset you intend to use is sized for the shell length/width. Tools required: bottom bracket spanner, 5mm allen keyKey po Sep 24, 2019 · This video walks through the complete procedure of removal and installation of bottom brackets used in threaded shells, including three-piece cranks, threade Sep 23, 2015 · How to remove and install a two piece compression slotted crank on a bike, including the Shimano® Hollowtech II and FSA® Gravity cranksets. Sep 4, 2006 · Other sellers on Amazon. USAGE; For installation and removal of HOLLOWTECH II/2-PIECE CRANKSET bottom bracket cup tool; USP; Impact wrench version HOLLOWTECH II/2-PIECE CRANKSET bottom bracket tool Mar 24, 2014 · Instructional video showing how to remove the Shimano Hollowtech 2 bottom bracket Part 1: removal. Installation: https://www. ABOUT OUR BEARING CHOICES: Ceramitech Bearings Its Hollowtech II design makes it compatible with Shimano Hollowtech II 24mm spindles. This is a less common standard but still exists in some bikes. A few bike brands use an Italian threaded bottom bracket but these are rare. You need to drill a 50mm hole in your magnet disc. 00 + ships free. Depending on your particular model, you may or may not be required to add o rings to the spindle before Jan 25, 2018 · Shimano Hollowtech II Bottom Bracket Fitting Guide. bike With the many cranksets and bottom bracket types in the market, this guide specifically focuses on replacing a vision track crankset and similar Hollowtech II crankset. BB-R9100 NOTE TL-FC24&TL-FC32 TL-FC24&TL-FC33 • For an impact wrench, use TL-FC34 for BB-R9100. The Shimano BB12 press-fit tool is designed to install Hollowtech II press-fit bottom brackets. I enlarged the center hold on the magnet disk so it would fit on Jan 6, 2019 · This video demonstates the process of how to remove and install Shimano Hollowtech II cranks, as well as the tools needed. 375in (34. Make sure that you have the correct size replacement. We fitted IXF c Mar 11, 2024 · Buy GEWAGE Bicycle Bottom Bracket Tool - Bottom Bracket Removal Install Tool Compatible with Shimano Hollowtech II/BB9000, BBR60,12X46MM - BB Remover with Crank cap wrench (FIT BB9000): Shop Tools - Amazon. Visit the SHIMANO Store. mm Length 92 mm Width BB86/92 Shimano Hollowtech II. With an advanced seal construction for smoother rotation and small ball bearings to minimize weight, the SHIMANO DURA-ACE bottom bracket is offered in both pressfit and threaded options. to/38MLVTOBike Stand: https://amzn. The M30 family of bottom brackets have a 30MM Drive bearing, a 28MM NonDrive bearing. For SHIMANO 24mm MTB cranks, the SHIMANO DEORE XT bottom bracket uses high quality sealed bearings and is offered in threaded and pressfit options. $1790. SLX HOLLOWTECH II MTB Crankset 1x11-speed. The complete guide to bottom bracket standards | BikeRadar Nov 21, 2022 · The SHIMANO BB-MT501 bottom bracket for Hollowtech II provides better sealing and rotation to delivery high driving efficiency. This video will review how to remove and install press fit bottom brackets, including: PF41 (BB86, BB92), PF42 (BB30, OSBB), PF46 (PF30), Trek® BB90 & BB95, BB30A-OUT-SRAM. com/watch?v=U5IkiDTKMdsAll Shimano bottom brackets fit a 24 mm dia or 15/16 in Shimano TL-FC32 Bottom Bracket Tool. your price $179. The BBInfinite Shimano BSA Threaded Bottom Bracket works with all Shimano HollowTech mountain cranksets on the market, from Deore to XTR. Crank Removal and Installation: One-Piece Sep 4, 2006 · BIKEHAND Bike Bicycle Quality Crankset Crank Arm Dust Cap Bolt Install Remover Removal Adjusting Wrench Tool Compatible with Shimano 8 Teeth Internal Splines Hollowtech II 214 $7. . Translation: Hollow Tech II spindle length has to match the bottom bracket width. 95 MB. Bearing preload is from our drive side wavy washer. 98 Next page This item earns up to 40 VIP Reward Points. INSTALLATION Threaded bottom bracket (HOLLOWTECH II) INSTALLATION „ Threaded bottom bracket (HOLLOWTECH II) List of tool combinations Use the tools in the correct combination. SHIMANO - Bottom Bracket - Threaded - HOLLOWTECH II - 68/73 mm shell width. Since the vision track crankset does not have a square-tapered bottom bracket, different tools are required to remove and install the crankset. Apr 10, 2013 · Fortunately, this model is inexpensive and a breeze to install. D. The Italian threaded bottom bracket has a shell inner diameter of 1. Our HollowTech bottom bracket ships with the necessary accessories and an installation guide. - OVAL M30 CRANKS. Threaded bottom bracket shell width (mm)|73. Additionally, when considering compatibility, it’s important to check the specifications of the Hollowtech bottom bracket and make sure it is compatible with your bike’s frame and SHIMANO DEORE XT Threaded Bottom Bracket 68/73 mm shell width. Jun 15, 2022 · BSA, or English threaded bottom bracket, is the most common threaded standard in use today. BB86 for 30mm Spindle Installation / Service; BB86 For 29MM Spindle Bottom Bracket Kit. Buy PART NUM 507063. Oct 9, 2023 · BB386 was developed by expanding the width of PF30 to match that of BB86. 4g. Check Store Availability. 2. This guide is for a road bike 68mm shimano bottom bracketIf you find the videos helpful and would like to See full list on restoration. X-Tools hollow tech II bottom bracket tool to fit Shimano's range of BB's. $140. WP-Y13009210. 83. Come along and check out how to perform a square taper to hollowtech bottom bracket upgrade on your bike. New (9) from$1742& FREE Shipping. - BOX BMX M30 CRANKS. incl. 95 (68/73 mm) 96 (83 mm) Remarks. No creaking/groaning. Feb 16, 2023 · How to install a hollowtech II bottom bracket and crankset. - INFOCRANK M30 CRANKS. There are many different designs and tool options. $ 18. Insert the tool fully and remove the non-drive (left-side) cup by turning counterclockwise, holding the tool firmly to the cup. (z) Bottom bracket shell width 2 Install the cups. Shimano Non-Threaded Hollowtech II Bottom Brackets Compatible with 24mm spindle Hollowtech II cranksets For use on BB86/92 bottom bracket shells … read more. Before install, be sure to check our BB fit guide at chrisking. Link to purchase the Park Tool BBT- Dec 17, 2016 · 4. Tools required: thin screw driver and greaseTo To meet customer needs in the best possible way, SHIMANO has developed the press-fit bottom bracket, staying focused on our final goal: total performance in pedaling. Oct 27, 2021 · In this video I’m going to explain how to perform a Hollowtech II bottom bracket removal and installation. Enquire about Virtual instruction (online video support). Remove Press Fit BB. There are only two options for press-fit BBs in the current models, and both have almost identical specs. TL-FC32. Clean bottom bracket cups (left), clean crank, spindle, and dustcovers (right) 5. 92. DEORE XT M8000 Series. This wrench will help you install and maintain most of your modern external bottom SHIMANO XTR - Bottom Bracket - Press-Fit - HOLLOWTECH II - 89. FSA® crank caps use an 8mm hex wrench. | Search this page. Double threaded internal sleeve to tighten the right and left cups with two spanner wrenches and torque your bottom bracket tight on installation … read more. Our history in the sport and our heritage of innovation, design and manufacturing is important to us. com FREE DELIVERY possible on eligible purchases BB86 For 30MM Spindle Bottom Bracket Kit. This product is currently not available! Please notify me as soon as the item is available for delivery again. The oversized threadless shell was designed around a 30mm crank axle with bearings that were pressed directly into the frame. 70. Use TL-FC37 for SM-BBR60. It has a 30mm diameter axle with pressfit bearings like BB30, but pushes the non-driveside bearing out by 11mm, for a bottom Instructional video showing how to remove the Shimano Hollowtech 2 bottom bracket Part 2: servicing of bearing. SHIMANO Threaded Bottom Bracket 68/73 mm shell width. It is available with 30, 32, and 34T chainrings. English (BSA) threaded bottom bracketFits 68 and 73mm frame bottom bracket shellsFor use with MTBAluminum threaded cups Spindle Interface Type: SHIMANO Hollowtech IIBottom Bra5JJcket Shell I. Shimano HOLLOWTECH II Ultegra SM-BBR60 shown. Fit the spacers on the bearing cups as noted earlier and fit the sleeve on the right hand side cup. 99. Oct 9, 2014 · Shimano Hollowtech bottom brackets are quite common on modern road bikes, although other systems are regularly seen too. Shimano Hollowtech Bottom Brackets a HOLLOWTECH II bottom bracket cup tool. Add to Cart. €14. Or fastest delivery Thu, May 9. Installs BB86 & BB92 bearing cups. In the narrower sense, there are no specific mountain bike bottom brackets, road bike bottom brackets or gravel bottom brackets; however, different manufacturers each set their own priorities with regard to The BBInfinite BB386EVO DirectFit Shimano module works with all Shimano HollowTech road cranksets on the market, from Tiagra to Dura Ace. Specifications. BB-R9100. Cervélo’s bikes use the BBright bottom bracket system,. In turn this SERIES. It’s a lightweight component Shimano XT / SLX BB-MT801 Hollowtech II Bottom Bracket. SERIES. 8mm diameter shell. Sep 8, 2016 · Sep 8, 2016. INSTALLATION HOLLOWTECH II/2 piece crankset 11 To be continued on next page HOLLOWTECH II/2 piece crankset Spacer installation method 1 (z) Check whether the width of the bottom bracket shell is 68 mm, 73 mm, or 83 mm. This Shimano HollowTech BB ships with the special press tools and retaining compounds you'll need. The guide below will show you the basics of how to install a Bafang BBS02 / BBS01 and BBSHD. Fit the right hand external cup into the shell and screw it slightly by hand anticlockwise. Showing 1 products: Enduro, TorqTite, Stainless ACB bearing, BB86/BB92. I found a blog post with some interesting measurements. Inspect the threaded cups for tool fittings. 86,92 mm Width Hollowtech II Shimano Hollowtech II. You can't put a pressfit bottom bracket in a frame not designed for pressfit bottom brackets. BB-R9100 TL-FC24 & TL-FC32 TL-FC24 & TL-FC33 TL-FC24 & TL-FC36 TL-FC34 NOTICE • For an impact wrench, use TL-FC34 for BB-R9100. 77. 5/92 mm shell width For SHIMANO 24mm MTB cranks, the SHIMANO DEORE XT bottom bracket uses high quality sealed bearings and is offered in threaded and pressfit options. Use an universal threadless bottom bracket like the Velo Orange Grand Cru threadless bottom bracket. In the olden days, a bicycle would have a cottered bottom bracket, but they are Mar 12, 2018 · Easy DIY how to: removing, cleaning, and replacing - or installing a new - Shimano HollowTech bottom bracket. 86. HOLLOWTECH II bottom bracket|Threaded bottom bracket type. tq mf op gn ii pl ql mi yo cr