New BB30, BB92 Conversion Bottom Brackets from Race Face – Run Standard Cranks on Fat BB’s
Let’s say you just got a new frame that’s BB30 or BB92 with the intention of building it up with some cranks to take advantage of it, but your budget gets cut short.
Or, suppose you just got one of the new 2×10 or 3×10 cranksets from Race Face, FSA or Shimano to fit your standard bottom bracket frame, but then you’re able to spring for a new frame and want the option of upgrading to BB30 in the future.
Go ahead and get that BB30 frame, my friend, because Race Face has your solution. They’ve just released three new bottom brackets to fit road and mountain BB30 bottom brackets but with interior bearing diameters to fit their X-Type cranks, which means they’ll also fit Shimano and most FSA cranks (sorry Truvativ/SRAM GXP crank owners, they won’t work for you due to the tapered spindle). They’ve also got one that converts press-fit BB92 (41mm) frames to use standard cranksets.
Best of all, they’re either the same weight or lighter than standard outboard bearing bottom brackets and they work just the same.
More pics and specs after the break…
The mountain bike BB30 Adapter bottom bracket uses press-fit bearing cups that work just like outboard bearings. It, and the others, are precision CNC machined to fit standard BB30 diameters. The bearings are placed in the same wide stance as with their outboard bearing bottom brackets. Specs: 110g, 68mm x Ã¸42mm BB30, black only, intended for XC and trail riding.
The road bike BB30 adapter bottom bracket weighs in at 105g with the same specs as the MTB version save for road-oriented bearings.
The Ã¸41mm press-fit bottom bracket converts BB92 frames, road or mountain, and other sizes. Race Face says their design’s precision CNC machined and anodized aluminum alloy cups are more accurate and durable and have more stable interfaces than competing options with plastic parts. The bearings are serviceable, too. Specs: 95g, black, fits BB92 (92mm asymmetric, MTN), BB89.5 (89.5mm symmetric, MTN) and BB86.5 (86.5mm symmetric, Road), intended for XC, All Mountain and Road use.
Check this tech post we did explaining the different bottom bracket sizes and technologies.