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YST Threadless 68 mm Sealed Bearing Bottom Bracket for Frames with Damaged Threads

Customer Reviews (1)
5 / 5| Write your review
£16.99 Please note this product has selling restrictions to your country. was
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SJS Cycles part number : 
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Product Reviews (1)
Questions & Answers (5) Q & A
Fits JIS square taper type cranks.

Requires a Shimano type splined bottom bracket removal tool. (Shimano's own is SJSC part #858)
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Product Reviews (1)
Overall Product Rating 5 / 5
05 Jul 2017
5 / 5
I recommend this product
Proseasy to fit, fairly cheap, saved my bike
this was easy to fit and works fine
Questions & Answers (5)
Will this fit in a damaged 1.37" thread
10 Jan 2018
I have just removed a Shimano BB -UN52 Bottom bracket from my bike unfortunately resulting in damaging the threads in the frame beyond use. I think this will fix my problem, my current bottom bracket is 68mm frame width and 122.5mm length which this matches, Can you please confirm this will fit inside a standard 1.37" threaded frame
Hi there,

Yes this will fit, just select the 122.5mm option on the drop down tab.

Frame preparation?
19 Oct 2017
Does this BB require any frame preparation?

If your frame has never had the BB shell faced then this may be required to get a tight enough fit but otherwise no additional frame prep should be required.

68mm threadless BB unit
27 Aug 2017
I have a 1977 Carlton Clubman frame with stripped BB threads. The BB axle has threaded ends with nuts that secure the crank arms. Your axle comes with bolts that secure the cranks arms to the axle, will my crank arms fit onto the axle OK. My current axle is JIS with the slightly larger tapered ends.

This will work with your current crank arms.

Will This Fit A 122.5Mm Long Frame?
16 Dec 2016
I Can See It Says 113mm Here But I Filtered By 122.5 And This Was Dispayed As A Result.

This bottom bracket is available in different lengths, you can select the required 122.5mm length from the drop down menu.

Will This Fit A 35Mm Diameter (68Mm Wide) Bottom Bracket
15 Sep 2014

Yes this bottom bracket will fit fine into your frame.