Thumpstar - TSK 90cc S4 Dirt Bike crossfire Brand New 15T Front Sprocket

Brand New 15T Front Sprocket Cog for 428 Chain Fit 110cc 125cc 140cc PIT PRO PIT Bike Trail Bike Dirt Bike Thumpstar

and when to change gear

Nudge bar and side protection brush bars

10mm LENGTH OF THE PIPE approx 114

22mm DISTANCE BETWEEN CROSSING MOUNTING HOLES(HOLE CENTRE TO HOLE CENTRE) approx 89

Thumpstar - TSK 90cc S4 Dirt Bike crossfire Brand New 15T Front SprocketNew stock available mid Aug 2026 Small, compact, yet simple 90cc We've listened to years of feedback on our best selling kids' bike, and we're excited to introduce the revamped TSK90, which takes an already awesome package for junior riders to the next level. Firstly, we've given it a fresh look with our new mini stealth plastics, making it slick and appealing to both kids and adults while matching our bike lineup. But the real magic lies under the