Surly Narrow Wide X-Sync Ring 28t 58mm BCD Stainless Steel CheckoutSpec= 350-400 x 65mm Chromoly hardware Defined Color Black

Chromoly hardware Defined Color Black Offset (mm) 20 Diameter 27

Provides 270° of visibility Lumens Rear 100 Lumens Front 700 Recharge Type USB Battery Li Ion Weight 107/48

A durable 6061-series aluminum frame uses shaped

5 Thread Length (mm) 13 Front Axle Type 15mm Thru Axle Axle Diameter (mm) 15 Overall Length (mm) 141 Diameter 15Mm

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Surly Narrow Wide X-Sync Ring 28t 58mm BCD Stainless Steel CheckoutSpec= 350-400 x 65mm Chromoly hardware Defined Color BlackSurly X Sync ChainringsSRAM licensed X Sync technology Narrow wide tooth profile positively engages chain for better performance with single chainring drivetrains 304 Stainless Steel Ring Position Type Inner Tooth Count 28 Drivetrain Speeds Single Speed 3 32" Chainring BCD 58 Color Silver Defined Color Silver