Special Features

Direct Fit for Yozma IN10 Electric Dirt Bike: Designed as a replacement chain tensioner pulley for Yozma IN10 e‑bike and electric dirt bike models. This idler wheel guides the drive chain from above, controlling tension to prevent slackening and sagging. Please compare the product dimensions and appearance with your original pulley before ordering to confirm a correct match.
Built‑In 6900Z Sealed Bearing for Smooth Rotation: Each pulley features an integrated dual‑shielded 6900Z metal ball bearing that keeps out dirt, mud, and water while reducing friction. This sealed design helps maintain smooth, quiet chain movement and extends the service life of the tensioner assembly, even in demanding off‑road riding conditions.
Durable Construction for Trail Riding: The black outer wheel is made from high‑strength, wear‑resistant material that withstands impacts, vibration, and high‑speed chain operation. It absorbs drivetrain noise and helps maintain proper chain alignment on rough terrain, making it a reliable replacement for cracked, worn, or noisy original guide rollers.
Precise Dimensions for Proper Fitment: Approximate size: 34.6 mm outer diameter, 24.8 mm width, and 9.8 mm inner bore (10 mm). Please verify these measurements against your existing pulley to ensure proper installation and chain alignment. A correctly sized tensioner pulley helps distribute force evenly and reduces abnormal chain wear.
Simple Swap & Complete 2‑Pack: No special tools required. Remove the old tensioner pulley and mount the new guide roller directly onto the frame. Each package includes two pulleys, so you can replace both upper and lower guides or keep a spare ready. Restore smoother drivetrain operation and enjoy a quieter, more responsive ride.

Description

Restore Smooth Chain Operation on Your Yozma IN10
A worn or noisy tensioner pulley can cause chain slap, misalignment, and premature drivetrain wear. This 2‑pack replacement kit is built to get your electric dirt bike running quietly and efficiently again.
Designed for Yozma IN10 Models
Compatible with Yozma IN10 e‑bike and electric dirt bike chain guide systems

Fits both upper and lower tensioner positions

Direct replacement for original factory pulleys

Key Features
Integrated 6900Z dual‑shielded ball bearing for smooth, low‑friction rotation

Durable black composite outer wheel resists cracking and wear

Sealed bearing design protects against dirt, mud, and water

Approximate dimensions: 34.6 mm OD × 24.8 mm width × 9.8 mm bore

Installation Tips
Remove the retaining bolt from the old tensioner pulley.

Slide the worn pulley off the mounting post.

Position the new pulley in place and reinstall the bolt.

Check that the chain is properly seated and tensioned before riding.

Package Includes
2 × Chain Tensioner Pulley with 6900Z Bearing

For any questions about fitment or installation, feel free to contact us. We are here to help you get back on the trails with confidence.