Comas brand rear sprocket for Biketrial and Trial bicycles. Made in aluminium 7075-T6 and CNC machining. Compatible with all hubs in the market. Threat 1,37"x24T. For chains in sizes 1-1/8" and 3/32". Centered teeth. Red finished. Threat wide 12mm. 13 teeth. 15 grams of weight.

MAIN FEATURES

· Comas brand rear sprocket for Biketrial and Trial bicycles.
· Rear sprocket CNC machining and made in 7075-T6 aluminium.
· Standard threat 1,37" x 24t compatible with most hubs in the market.
· 12mm amplious base.
· 2mm wide teeth centered for better transmission working.
· For chains in sizes 1-1/8" and 3/32".
· Red anodised finished.
· 15 grams of weight.

Sprocket measures

· Number of teeth: 13
· Total wide: 12mm
· Tooth wide: 2mm
· Threat 1.37”x24T

Standard use for each size

13 teeth: it is used in 20 inches bikes (970mm mainly) for young riders and kids.