Do you have an older ROTOR crankset or power meter, and the crank axle/spindle seems too narrow for your standard frame?
If so, it's likely that you have an OEM crankset with the BBright Cervelo spider, which has a built-in 11.5mm spacer on the drive side. Luckily, we can help with that! It takes a proprietary tool (linked below) but we also offer it as a service. Just purchase the spider you want from the drop-down menu, then we'll reach out to you for information to finalize the process. Specify if you would like the old spider returned, otherwise we will recycle it. The $22 service fee includes installation plus the cost of a new spider nut.
We also offer this service if you want to switch from 130 BCD to 110 BCD, or from 2x to 1x, or to change the spider on your ROTOR REX MTB cranks (contact us directly for MTB questions). The most common swaps we do are on 3DF and ROTOR Flow cranksets. This service also applies to older 3D+, 3D24, and 3D30 models.
Note: This does not include spacers or new chainring bolts -- please add extra parts to the cart as needed.
Links to the tools required if you want to do it at home:
Installation tip - use a heat gun to loosen the Loctite on the spider nut, and be sure to use a red Loctite upon installation.