SRAM’s X01 Eagle BB30 Crankset is an extremely light and cost-efficient way to mate 1x with your BB30 bottom bracket. The BB30 standard embraces a 30mm thru-axle and a narrower bottom bracket shell. The two together save weight and increase rigidity.
The Eagle X01 crank shares Carbon-Tuned technology with the fancier XX1. It’s a precise wrapping of different plies to maximize stiffness and minimize weight. No reason to carry the bulk around if you don’t need it. The stiffness-to-weight ratio is unrivaled, save the XX1. The arm internals are no longer hollow, but possess a foam core (helping make it more bash-proof). That’s a 30g weight penalty, but the crank is still amazingly light at 495g ( GXP with 32-tooth Eagle Chainring), it’s just as stiff, and a has a great cost savings.
Helping save weight, add drivetrain efficiency, and improve that all-important simplicity, are the direct-mount chainrings. Held by T25 Torx bolts and several splines, the X-Sync 2 ring bolts into the right crankarm. They’re forged and CNC-machined aluminum with a new tooth profile. SRAM found that most chainrings basically hold the chain at the first few teeth where the chain meshes with the ring. That leads to wear and inefficiency. So the new design holds the chain all the way around. The teeth are designed to not only keep the chain on with an alternating tooth profile, but the positive-rake teeth also held mud and grit come out of the chain as it moves around the ring. Sizes are 30-38 teeth in two-tooth increments. Did we mention quiet? They’re super-quiet.
The X-Sync 2 rings are designed to work with Eagle twelve-speed chains, but can be used with SRAM 1x 11-speed systems. If you’re coming from a 1x eleven-speed, go with a two-tooth larger chainring to have both a higher high and lower low than you did before.
The thru-axle on this crankset is 30mm in diameter and designed to work with BB30 and PF30 shells of 68-73mm in width. You might be able to get it to work with a few more bottom brackets if you find the right conversion bottom bracket. The chainline is 49.0mm.
The SRAM X01 Eagle BB30 Crankset sets your BB30 frame up to work with Eagle 1x.
Sram X01 Eagle BB30 Crankset
- Brand: SRAM
- Product Code: sg154
- Availability: In Stock