We mastered our oval chainrings to perfection, so you can get the best possible advantage from the oval/elliptical shape.
Finest design to provide excellent weight to strength ratio
One of a kind special oval shape (Patent Pending)
Greatly improves traction and climbing abilities
Unique Patent Pending narrow-wide teeth profiles to keep your chain in place for a minimum of 12 months!
Special 3D teeth machining for ultimate mud relief decrease wear and noise dramatically
Superb quality and great look.
You will ride faster using ovals. If you keep using round ring then others will get quicker
You will not "feel" the oval shape at all
Reduces stress on knees
There is a small mark (triangle-shaped) on the inner circumference of the chainring. This mark Must sit behind the crank arm. The mounting procedure is identical for SLX and XT cranks. Use the stock 1X Shimano M8 chainring bolts that come with crank and Torque them to about 7Nm.
Important - if you are converting from a 2X chainring setup to 1X and wish to mount a 30T absoluteBLACK ring you need to purchase 1X bolts from Shimano for this crank because 2X bolts are too short. Other chainring sizes can use Shimano 2X bolts.
Compatibility: Fits Shimano XT M8000, SLX M7000, and MT700 cranksets 1X and 2X only. 9, 10, 11, and 12spd Eagle compatible. Boost and non-boost.
Material: CNC machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing
Chainline: Perfect 49mm
Mounting Holes: 4 x 96mm BCD Asymmetrical design. Use stock bolts.
Ovality: Optimized to each size separately. Range: 10.2-14.4% and Timing of 110.5-116.3° after TDC (top dead center) Patent Pending
Chain Options: 10, 11, or 12spd chain for geared bike or 6-8 spd one for SS (1/8" also fits).
Chainguide needed: No. But if you want one then the chain guide should have 2 teeth more capacity than the nominal oval ring size.
Important - When mounting 30T chainring make sure your bolts have min 11mm long thread (original Shimano 1x bolts) . Other chainring sizes can be mounted with 8mm long bolt thread.
If you wish to check for frame clearance with the new oval ring, below you can find the measurement of the biggest dimension of the oval (tip to tip of tooth):
30T: 134mm ; 32T: 143mm ; 34T: 151mm