Is BB30 the same as BB386?
Is BB30 the same as BB386?
A BB30 chainset is designed to work with a 68mm shell with the bearings mounted inboard. A BB386 chainset is designed to work with a 68mm shell but the bearings are mounted outboard i.e. the crank spindle is 18-20mm longer.
Is BB386EVO compatible with BB30?
“The BB386 EVO cranks are compatible with almost every BB shell standard (BSA, BB30, PF30, BB86),” says Jason Miles of FSA.
What is wrong with BB30?
The leading cause of BB30 bottom bracket creaking is bearing migration within the frame bb shell during use. The bearings shift around a minute amount, resulting in the dreaded creaking sounds. Typically somebody greases the bearings to fix it. This only masks the problem, or more often, exacerbates the problem.
What is the difference between BB30 and BB30a?
The BB30a is similar to the BB30 standard, but the frame BB shell is 5mm wider on the non-drive side. BB30a system uses thin spacers and/or a wave washer between the bearings and the crank arms to take up any slack and micro-adjust the chainline of the crank.
What is the difference between BB30 and BB86?
Measure your BB shell width – BB30 shell is usually 68mm wide whilst BB86/90 is 86.5mm i.e. you may need a spindle 18.5mm longer. For press-fit BBs for 41mm dia shells and 30mm spindle, the bearings are very small so don’t expect them to last very long.
What is the difference between a 30mm and a BB386EVO spindle?
The 30mm spindle improved torsional stiffness, while reducing the spindle weight to a minimum, and increasing the contact area between the crank arm and the spindle. The BB386EVO design simply modifies the BB30 design to a wider width, and incorporates a press fit bearing cup, rather than the direct fit bearing of the BB30 system.
Will the 386EVO crankset fit on a BB30 frame?
The BB386EVO uses the proven 30mm alloy spindle , which already is known to reduce weight and improve stiffness. Mating this to the wider BB shell, and press fit cups allows this crankset to fit not only the 386EVO BB shell, but also to be adaptable to threaded frames, and to BB30 frames.
What is the new BB386EVO system?
Anyway, the new BB386EVO system is press fit and uses an 86.5mm bottom bracket shell width – the frame is wider down there than currently and the axle is as long as that of an external system. And the axle diameter is 30mm – the same as BB30. Clear? Okay, so what are the advantages? According to FSA:
What is a BB30 bottom bracket bearing tool set?
The BBT-30.3 Bottom Bracket Bearing Tool Set is designed for installation and removal of the bearings used in BB30, PressFit 30 (PF30), 386EVO, and BBright™ bottom bracket systems.
