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TRUSTED SINCE 1963
Since our origins in the back of a bike shop in 1963, it has been Park Tool's sole mission to design and manufacture high-quality tools that empower mechanics and riders of all skill levels to service their bicycles. Just like our other 500+ tools, our bottom bracket tools are a product of our decades of experience and expertise in the industry, in the shop and on the trail.
Karon Zanella
Reviewed in the United States on March 25, 2024
Worth every penny. Should have purchased this tool years ago.
Jenny Stahler
Reviewed in the United States on December 9, 2024
A tool that is worth every cent, and a tool with such a simple design puts a smile on my face.
Cory
Reviewed in the United States on May 12, 2023
Great tool for the price. For installing the BB, got some fender washers, threaded rod and nuts and was able to install it
Maciej Lis
Reviewed in Germany on December 11, 2023
Alles Bestens.Danke
Mike Hayward
Reviewed in the United States on October 20, 2022
This tool is great for BB94 press fit in mountain bikes. I have successfully used it to drive out cups held in with grease and teflon paste, but not park retaining compound which is basically like glue. I don't use the drifts as I puchased a complete bearing press with higher quality machined drifts but they appear servicable. You can easily bend the arms slightly to gain additional pressure against the bb shell if your plastic cups have been tapped out before. Make sure to keep the driving end concentric with the shell you are driving the bb from to get a square impact on the cups instead of wedging them in sideways. That can be a bit fiddly since the shaft is by design smaller than most cranks.
Dad
Reviewed in the United States on October 26, 2021
I used this for my BB86 bottom bracket and removed the bearing races so that I could regrease them. Sadly, I was too afraid to hit it that hard on my carbon frame so I used the press to remove it and then used this tool for future removals - I still had the retaining glue hence the press for the initial removal.
Karl Kroening
Reviewed in the United States on June 30, 2020
On my 2015 Trek Remedy 8, I'm swapping out the stock 2x drivetrain for 1x SRAM Eagle, and part of the process requires switching to a SRAM Dub bottom bracket. The world of bottom bracket terminology is a bit confusing, but I think the stock bottom bracket + shell I had on my Remedy was PF41 / BB89.5 / GXP. The shell is 89.5mm across and 41mm in diameter, and the bottom bracket that comes with the bike is 24mm on the drive side and 22mm on the non-drive side. I'm mentioning this in case anyone has a similar Trek bike and is as confused as I was before doing a bunch of research and finding this tool.I hesitated to buy this tool because it's essentially going to only be used once, but after a bunch of hassle of unsuccessfully trying to remove the existing bottom bracket without the tool, I finally caved and bought it. When the tool arrived, it took several whacks from a rubber mallet, but it worked like a charm to get the bottom bracket out, and I can see the value in having such a tool versus some other more makeshift methods, especially if you're going to use it more than once. But even just using it once, the amount of time I saved by just using the proper tool was probably worth the $45. At this point I'll probably just hang onto it and lend it out in my local mountain biking group or sell it on craigslist.In any case, from what I can tell, the BBT-90.3 is absolutely perfect for this kind of bottom bracket (PF41 / PF92 GXP) and worth the $45.
N Edmunds
Reviewed in the United Kingdom on April 16, 2019
I needed to change the press fit BB on my Cube Reaction pro Carbon. Cycle shop were busy so decided to buy the tools to do the job. Watched a video on line and this was so simple to use. Comes with the inserts for the bearing press for inserting the new BB as well. Completed the whole job from crank out to BB in in 30 minutes.
Anacron
Reviewed in Italy on September 27, 2018
Prodotto ottimo. L'unica cosa che gli si può rimproverare è il prezzo ma per quanto riguarda la qualità con Park Tool si va sempre sul sicuro. Per capire come si usa basta andare su Internet e cercare il numero del modello. C'è anche un video ufficiale sul sito dell'azienda. Io l'ho usato anche per estrarre dei cuscinetti con foro compatibile (tipo SKF 61805). Per la cronaca anche se i cuscinetti sono usciti fuori dalla sede senza danneggiarsi io avevo già quelli di ricambio quindi di fatto non ho rischiato nulla.
Tony B
Reviewed in the United States on August 8, 2017
Essential tool to change out bottom bracket bearings. Read the specs to make sure this is the tool for your bottom bracket. The removal tool is easy to use. Just follow the straightforward instructions. You'll need a mallet of a block of wood the whack the tool to push the bearing- easy. Also it comes with 2 bearing press rings used to make sure you are pressing the bearings into the housing evenly and in proper alignment. You'll need a bearing press tool, or just as effectively you'll need a long 5/8" or 3/4" bolt, a few flat washers and a nut to use as a press. Again easy and the bolt, nut and washers should cost about $6 in a hardware or home improvement store. That's a lot less expensive that buying one of the various presses available. The best benefit of this tool is that you can change your bottom bracket bearings yourself and make sure that the bearings and seals are installed correctly.
Canadian Cyclist
Reviewed in Canada on September 19, 2016
Excellent tool KIT! The removal tool worked as described, but the bushings made the purchase for me as they are worth half the price. I removed the stock BB bearings from a 2015 Giant Defy (aluminum BB shell) in less than a minute. Used a homemade press with the installation bushings and perfectly pressed in new Wheels Manufacturing BB bearings in less than 3 minutes. I'm handy with tools, but this was my first time performing these tasks.
Robert
Reviewed in France on December 31, 2015
Après payant un magasin vélo pro 30 euro pour le regarder forcer les BBs sorties martèlement avec marteau et une barre pour une demi-heure, j'ai acheté ce produit pour la prochaine changement des roulements BB... incroyable... ça ma pris moins de 5 seconds sans aucun effort ni les sentiments par rapport des dégâts de mon cadre...
Sam Shartzer
Reviewed in the United States on January 11, 2014
This is a nice option for the home mechanic. It punched out the old bottom bracket in a few whacks. Very easy to use and well designed. I only used the washer pieces in a vice to install the new bottom bracket.It does seem kinda cheep that Park did not include a piece of all thread and two nuts! But otherwise the tool performs as expected.It is nice to know that it will last a long time since there are essentially no moving parts and it seems very well made.
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