SKU: 51293021847
Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
Features 7 connectors (5 plastic
Adjustable Sheave Clutch Pulley: An adjustable torque driver improves takeoff power (quicker acceleration) and optimizes top-end speed by managing belt position
Tubeless Ready — compatible with tubeless setups for lower rolling resistance and flat protection
Kick Start Lever Included: Serrated kick start lever included in the kit
5mm slide carburetor purpose-built for 139QMB 50cc 4-stroke engines
TFC S-1 High Power Camshaft - GY6 Big Bore Builds 150cc Features 7 connectors (5 plasticMaximize the power potential of your GY6 big bore build with the TFC Special S 1 High Angle Camshaft. Designed specifically for engines running 58. 5mm to 63mm cylinder bores, the S 1 delivers 6mm of valve lift significantly more than a stock cam keeping the valves open longer and pushing them further to pull in more air and fuel on every stroke. The result is stronger mid range and top end power that a big bore cylinder alone can't fully unlock
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