RK’s 420MXU2 will come with RK’s U-Seal for increased durability without increasing drag. RK’s UW-Ring seals utilize triple barrier grease protection plus anti-debris technology. Anti-debris protection is vitally important to maximize chain wear life by eliminating debris friction between internal components. RK’s U & UW seals also feature small contact points to reduce cold start drag. U & UW ring thickness is 50% thinner than O-ring with longer life time. MXU2 is available in 420 pitch.

1. Tensile Strength: 4,540 lbs
2. Max CC Rating: 150cc Off-road
3. Max Horsepower: 35HP
4. Weight: 1.74 lbs
5. Max Chain Width: 17.1mm
6. Master Link Included: Clip type
7. GB420MXU2-120 $99.05

Dimensions
W 3.34in * H 0.74in * L 9.65in
Weight: 2.87lbs