Sprocket 219 Pitch OK OKJ OKN – MINI – 60cc 100cc 125cc – HALF TOOTH

Sprocket 219 Pitch OK OKJ OKN – MINI – 60cc 100cc 125cc – HALF TOOTH

Don’t know which ratio to choose? One is too long and the other is too short?

Now you can fine-tune every tenth with these special sprockets. Their technology allows a “half tooth” adjustment, so you never have to compromise again.

Allows adjustment of the final ratio by half a tooth to achieve the optimal setup in all conditions without replacing the front sprocket.

Engineering development has made it possible to define a diameter exactly between two standard ratios: these sprockets do not have cut or modified teeth, instead the entire diameter is positioned precisely between two standard sizes.

Example: a 70.5 sprocket has 71 teeth, but with a pitch diameter exactly halfway between a 70 and a 71 sprocket. This results in a perfectly intermediate final ratio.

Compatible with all direct drive engines with 219 pitch transmission.

Manufactured from solid 7075 aluminum with hard anodized surface treatment for maximum strength and reliability.

Main features
✔ Material: 7075-T6 aluminum CNC machined
✔ Adjustment: each 0.5 step changes the ratio by approx. 0.7–0.8%
✔ Compatibility: fully compatible with all 219 pitch chains
✔ No modification required: no need to change chain length or front sprocket
✔ Design: variation of pitch diameter, not tooth count

Technical data
❖ Centering diameter: 116 mm
❖ Bolt pattern: 134 mm
❖ Hole diameter: 6.1 mm