Acros Clockworx Stainless bottom bracket review

Replacement external crank bearing

Our rating 
4.5 out of 5 star rating 4.5
GBP £49.99 RRP | USD $85.74
Acros Clockworx Stainless BB

Our review

A fantastic after-market bottom bracket… get one!
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It’s all too easy to ruin bottom brackets in foul UK conditions, but replacement options have pretty much been down to own-brand units from Shimano, RaceFace or Truvativ for some time.


Hope make some beautiful bottom brackets, but if they’re out of your price range, check out the excellent Acros units – which offer exceptional value, class looks and very, very good bearings.


We’ve been running this bottom bracket for around five months in all conditions and have been nothing but horrible to it with a jet wash, and it’s laughed everything off, which is more than some big brands do. 

Product Specifications


Name Clockworx Stainless BB
Brand Acros

Manufacturer's Description Acros Clockworx Hollowtech 2 Stainless BB
Weight (g) 106
Features Stainless Steel Angular Contact Bearings. Aluminium cups with Plastic spacer. Compatable with Shimano Raceface & FSA External BB Chainsets (Hollowtech II & X-type) Available in Clockworx Orange (Tibor Simai Signature Limited Edition) Comes complete with 8mm Allen Key axle end cap
Compatibility Shimano- Raceface & FSA External BB Chainsets (Hollowtech II & X-type)
Warranty Length 2 Years
Bracket Type External Bearing
Fits Shell Width 68/73mm