Oval chainrings have 3 main benefits; traction, traction and more traction. Forget any of the power gain claims that you've heard from the road side of the sport. For mountain, oval rings provide a more constant torque to the rear wheel thereby reducing spinouts and stalls on tough climbs. OneUp Narrow Wide chainrings have powered Richie Rude to victory 2 consecutive Enduro World Series Championships. The worlds fastest racers depend on OneUp Narrow Wide chain retention. 12% ovality (32T is equal to a 30T-34T range). 115° clocking from crank arm puts the major axis in your power stroke Reuse your existing 8-10mm long ring hardware. No new bolt packs required, saves you $15 Aggressive crud chamfers for awesome mud shedding performance and extended ring life Made from hard wearing 7075-T6 aluminum plate 30T rings have integrated shims and M5 chainring bolt threads to allow the smallest ring size possible on a 104 BCD crank. Bolts and spacers included. 32T rings have integrated shims and M8 chainring bolt threads 34T rings have chain ring shims. SPEC Material: 7075-T6 Weight: 51g (30T), 49g (32T), 51g (34T) Compatible with all: 9, 10, 11 Speed Chains and 104 BCD cranks Colors: Black Anodized Installation: Align the small bump on the inner edge of the ring with your crank arm

Perfect chainline with built in offset for a quieter longer lasting drivetrain and improved chain wear. Vital-MTB 4.5 Star Review "It’s a fairly inexpensive upgrade, and yes, we’re calling it an upgrade, that actually does make a day on your bike a bit more enjoyable. While it won’t make you an XC god on the climbs, it will help you maintain traction and get up those nasty punches a little bit easier. That, combined with the oval shape effectively widening your gear range, makes the OneUp Traction Ring one of the simplest, most affordable, yet still impactful, upgrades you can make to your ride. Oval rings smooth out the torque delivered to your rear tire reducing spinouts and stalls on tough climbs. Now available in a 30T size using unique countersunk spacers and M5 Torx bolts. Get ultimate climbing traction. Finally clean those muddy, rooty or loose climbs.

Strand Type: Single. Material: Aluminum. Brand: OneUp Components. Date First Available: December 28, 2016. Best Sellers Rank: #290,082 in Sports & Outdoors. Customer Reviews: 4.4 out of 5 stars 56 ratings 4.4 out of 5 stars. : B01MS1VIGC. Size: ?30T. Style: ?Does Not Apply. Part Number: ?1C0321BLK. Manufacturer: ?OneUp Components. Number of Items: ?1. Suggested Users: ?Does Not Apply. Material: ?Aluminum. Color: ?Black. Brand Name: ?OneUp Components. Item Weight: ?0.1 Pounds. Item Dimensions LxWxH: ?6.5 x 0.2 x 7 inches. Package Weight: ?0.06 Kilograms. Item Package Dimensions L x W x H: ?5 x 4.92 x 0.47 inches.