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A direct link to speed.
The SRAM X01 BB30 Direct Mount Crankset takes everything you know about traditional bottom bracket and crankset setups and turns it on its head by essentially eliminating the spider altogether and mounting the chainring directly on the spindle. This may seem a little bonkers, but it results in a lighter system that lets you swap out the chainring in a snap to adapt to the day's trail adventure — a handy feature on a one-by.
The X01 crankset is built with the same nigh-indestructible, super-stiff, and lightweight carbon fiber crank arms featured in SRAM's top-end XX1 crankset, just with a little less machining in the chainring and a more wallet-friendly price. While it may hold onto a smidge more weight than the XX1 chainring, the X01 chainring doesn't lack in functionality. It's machined with extreme precision and features SRAM's X-Sync technology, with squared-off teeth that grab the chain to keep it off of your ankle and guide it to a smooth transition back towards the cassette. The teeth also feature a sharp, narrow profile with rounded chamfer edges to help manage chain deflection and mud-spitting recesses for solid chain retention even when slogging through mucky conditions.
- Item #SRM005P
- Q & A
SRAM X01 BB30 Direct Mount Crankset
Excellent crankset very light, strong and solid
Light as air? No, but close
- Familiarity: I've put it through the wringer
In building my last bike, I went back and forth between XO1 and XX1. I was building a premium frame so naturally, I wanted premium parts. However, from the durability standpoint, durability was pretty high on the list of features wanted. I went with the XO1 for a couple of reasons. 1, the direct mount chainring (on the XX1 too) is a killer idea. It lightens up the system a bit without the spider arms and it allows you to change an chainring in seconds if you are going through different sizes depending on your riding style and location. Also, they are made exactly the same as the XX1 and both weigh almost the same. So I couldn't really justify the price. The end caps on the arms are a god send when you are lucky enough to get that dreaded crank strike and the protective sticker on the arms help keep the wear from showing from your shoes possibly rubbing on the arms. They are super easy to install AND remove. For installation you slip them through your frame, attach the non drive side arm, and tighten down the bolt. For removal, you repeat the process, no crank puller is needed since the bolt allows for extraction.
is this crankset compatible with the bike specilised ENDURO EXPERT CARBON 650B
the crankset now installed is
Custom SRAM S-2200, carbon, PF30 spindle, 30T, 94mm BCD spider