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We've made no secrets about our affinity for BB30. It's a good bottom bracket system -- it offers numerous advantages over the current external bearing bottom bracket and seemingly no disadvantages except that it is available on a limited (but growing) number of Pro level racing frames. For the Shimano Dura-Ace rider, BB30 has presented a compatibility problem. Leave it to Wheels Manufacturing to come up with a nicely executed solution. Their BB30 Adapter for Shimano cranks makes the fitment of Shimano road cranks to BB30 frames a simple affair.

The Wheels Manufacturing BB30 Adapter consists of two reducer sleeves turned down from solid blocks of Delrin. These adapters utilize a press fit into the BB30 bearings and, once in place, allow you to slide the Shimano crank spindle through just as you would in a standard Shimano bottom bracket assembly. The Delrin supports the spindle perfectly and the resulting performance is exactly what you'd expect from your Shimano cranks -- no wiggles and no creaks.

The Wheels Manufacturing BB30 Adapter for Shimano is compatible with all Shimano and Shimano compatible road cranks designed for external bearing cups and having a 24mm spindle.

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Wheels Mfg BB30 Adapter For Shimano

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Here's what others have to say...

5 5

Well made

  • Familiarity: I've put it through the wringer

Put together a BB30 frame and used a Shimano Ultegra crank - Standard press fit BB30 bearings were installed as recommended, then these two parts just fit perfectly into the bearings. I was amazed that these work so well, and even when cranking out some torque; no creaks, squeaks, or looseness. Great product.

I'm not totally familiar with all the...

Posted on

I'm not totally familiar with all the standards, are SRAM/GXP cranks (which also have 24mm spindles) compatible with this adapter? Right now my frame has an adapter for threaded 68mm shells (to then add a standard GXP BB to it), but it seems unnecessary if this will work with my SRAM Red GXP crankset and BB30 bottom bracket.

Best Answer Responded on

Should work on a BB30 frame - it's a super easy install.