Product number: RH10939 Chain size: 420 Number of teeth: 39T Material: Aluminum (A7075-T6/Super Duralumin) Representative models: NS-1, NSR50/80, Ape50/100 Type D, etc.

From the viewpoint of cost and durability, most normal sprockets are made of extremely heavy steel (iron), except for some competition vehicles. In order to bring out the performance of your car, aluminum is the best material for sprockets. The weight is approximately 1/3 that of steel. Since it rotates at extremely high speeds, it is essential to reduce weight. The shape is designed to prioritize performance and design over cost, so you can expect it to dress up your car.


Manufacturer: SUNSTAR
Brand: SUNSTAR
Model name: Rear sprocket
Product size: 16.7 x 16.7 x 0.58 cm ; 168 g
Product model number: ‎RH-109-39
Product dimensions Depth x Width x Height: 16.7 x 16.7 x 0.6 cm
Certification: ‎Installation (installation), use (driving) ) We will only guarantee the product if it is defective.
Product weight: ‎168 g