EK/PBR 520M3 13/48 Chain Kit - Ultra-Light Sprocket by EK CHAIN. A transmission kit designed for Cross riding: ratio 13/48, chain pitch 520, and ultra-light aluminum sprocket to reduce unsprung mass while maintaining good performance against terrain demands.
- Brand: EK CHAIN
- Category: Cross
- Configuration: 13-tooth sprocket / 48-tooth sprocket (13/48)
- Chain: 520M3, 114 links
- Color: Gold / Gold
- Sprocket Material: Aluminum (ultra-light)
- Weight: 1.36 kg / 100 links
- Relative lifespan index (for 100 links): 450
- Manufacturer reference: Not provided
Designed to minimize friction and resist abrasion encountered in competition, this chain kit is suited for off-road requirements without promising unverified performance. The gold finish adds an aesthetic touch and facilitates visual inspection during maintenance. The ultra-light aluminum sprocket reduces rotational mass, which is useful for improving rear wheel responsiveness during jumps and accelerations.
Common compatibilities: KTM 250 SX-F (2011–2012) and FACTORY editions. Ideal for Cross riders looking for a robust, lightweight kit that is easy to install during preparation or regular maintenance.