Surly Stainless Steel Ring 34t x 104mm MFPN=121-0325N In capturing all three metrics

In capturing all three metrics our sports-science based approach not only monitors power output but also gives the rider insight to optimize pedal symmetry for a more efficient pedal stroke with lab tested +/- 1% power accuracy

Features a cut-off beam to not blind oncoming riders

courtesy of a newly designed bump rubber

Ø35mm handlebar clamp

Surly Stainless Steel Ring 34t x 104mm MFPN=121-0325N In capturing all three metricsSurly Stainless 4 bolt Chainrings. No ramps or shift gates Surly rings paired with 9 speed chains will have a tight fit. No compatibility with 10 or more speed drivetrains Made from 304 Stainless Steel Ring Position Type Single Tooth Count 34 Drivetrain Speeds Single Speed 3 32" Chainring BCD 104 Color Silver Defined Color Silver Teeth 34T