JT RaceLite Aluminium Rear Sprocket 45/47/48/49/50/51/52 Tooth

We like these sprockets as they save about 400-500g over a lightweight steel or a twin ring sprocket and cost half of a twin ring. Saving this amount of weight on the rear wheel makes a real difference to grip due to its significant unsprung weight saving meaning the suspension can react faster maintaining traction. They are hardened alloy and last about half to 2/3 as long as a steel sprocket in real world testing, so aside from having to change it more often there is only a net benefit running these sprockets.   For Hard Enduro use we recommend for TPI: 12t front 50t rear TBI 12t front 47/48/49t rear (45 is stock and good for green lanes(13 or 14 front) or XC (13 front)