420SO Steel Chain x 138 links - Supersprox 420SO Chain (Steel) x 138 links. by SuperProx
The 420SO steel chain is designed for versatile use on both road and off-road. O-ring seals and semi-pressed link for preserving lubrication and facilitating installation. Sized for setups requiring 138 links and engines up to 18 hp.
Design and materials
- Steel/Steel construction providing good wear resistance for measured longevity
- Thickness of inner and outer plates is 1.5 mm for a robust transmission structure
- O-ring seals ensuring improved sealing and better retention of internal lubricant
- Pin length of 18.6 mm facilitating link assembly during installation
Practicality and features
- Chain length of 138 suitable for setups requiring this dimension for precise fitting
- Semi-pressed link for reliable and simple assembly
- Corresponding link 541019991 Quick Link 420-SO Clip included in the list of compatible references
Usage and performance
- Tensile strength of 17 kN and P.max 18 hp, suitable for engines up to 18 hp
- Designed for off-road use such as Motocross and Enduro while remaining suitable for urban and supermoto applications
Advantages
- OEM Reference CHA-420-S-O-138
- Steel/Steel colour for a discreet and universal appearance
- Gross weight: 1.45 facilitating handling during installation
Examples of compatible motorcycles
- RIEJU MRT 50 2T SM TROPHY LC CARB E5+ 50 (2026)
- YAMAHA TZR 50 2T LC CARB 50 (2012)
- MBK X-POWER 50 2T LC CARB E3 50 (2012)
Complete list of compatible motorcycles available in the dedicated section below
