10mm 34mm Black Chain Roller Tensioner Guide Wheel For Pit Dirt Bikes – 6900z

Building a pit bike or replacing a worn chain guide?

This is a universal black chain roller/tensioner wheel.

It's got a 10mm inner hole and a 34mm outer diameter.

It's a common size for many pit bikes, dirt bikes, and minibikes.\n\nIt's brand new, made in China.

It's a generic replacement part that fits a wide range of bikes—think CRF50, CRF70, Thumpstar, WPB, and other similar small bikes.

The bearing inside is likely a 6900z type.\n\nIt's a simple, essential part for keeping your drive chain tight and preventing slap.

A cheap fix for a worn-out roller.