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Our EBB is designed with an integrated bottom bracket suitable for use with a 24mm Shimano type crank. The unit has 17.5mm of throw and fits in a PF30 shell (46mm DIA) to tension your belt or chain easily. Produced at our manufacturing facility in the UK, the BB is CNC machined from 7075-T6 aluminium.

Eccentric bottom bracket (EBB), for PF30 or BB30 frames. Convert your frame to a single-speed or fixed-gear setup with these simple to use bottom brackets.

2024年6月18日 · Eccentric BBs perform two functions: chain or belt tensioning—horizontal movement. bottom bracket height—vertical movement. “I just can’t wait to tighten my chain” said nobody anywhere at any time in the more than 100 years since the safety bike was invented.

2016年2月16日 · I have the wheels mfg. EBB in PF30 on my wife's hard tail-- specialized SJ carbon. Both of us really like the unit. No detectable slippage and no damage to carbon bottom bracket torqued to 8nm. The bearings are great and it has performed very well. Very satisfied and highly recommended.

Eccentric bottom bracket (EBB) where the bottom bracket system rotates eccentrically to adjust chain or belt tension. Both systems have pros and cons. Seven offers only the EBB system for single cog chain and belt tensioning.

2015年2月15日 · I just got my hands on one of the Wheels Manufacturing Eccentric bottom bracket conversions for my wife's Specialized Carbon Stump Jumper. It is very similar in design to the Niner Biocentric 2. They say it is safe for most carbon frames and after inspecting the BB of the Stump Jumper I think it will work without a problem.

2015年3月17日 · If I wanted to build a SS specific rear wheel, I'd consider going that route. I'm planning to just run spacers on a standard freehub so that I can swap wheels between the different bikes if I desire. Save Share

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