Established in 1992, China Domanda Electric Machinery Co., Ltd. is China vortex sprocket manufacturer and wholesaler of pumps and eectric machinery. All production processes are conducted under rigid quality control measures, which have thereby earned us ISO9001 certification, in addition to European 'CE' and American 'UL' safety approvals for all series. We cooperate with a wide spectrum of customize vortex sprockets and wholesale distributors.

Vortex front & rear motorcycle sprockets
Vortex Front Steel Sprockets:
Highest quality steel
Precision cut at lowest tolerances
Case hardened
Tolerances of overall diameter & run out under .1mm
Vortex Rear Aluminum Sprockets:
Computer designed & machined
Aerospace aluminum
Saber tooth grooves
Electrically Coated for brighter finish
It may not look evident from the seat of a bike, but a stretched chain or a chain with tight spots puts uneven stresses on a motor and sprockets and causes frictional power loss. So, how much power, if any, did the bike gain with the new RK chain and Vortex sprockets in place? The bike put out a healthy 157.6 ponies, a full five percent increase in power. Take that into consideration when you decide whether to replace your old chain and sprockets.

Made from the highest grade 7075 T6 aluminum, lightweight and durable
Standard sprocket is bright-dipped with a clear anodization for a polished look
Colored sprockets are anodized for a durable and long lasting finish CNC machining to the tightest tolerances and a perfected tooth design make for greater longevity and free horsepower.Freestyle sprockets available up to 74 teeth (oversized)
How did our new drivetrain fare on the dyno? Pretty darn well. Our test bike first put out 149.6 horsepower with the old components in place. Check out huge dip in power and torque at between 3500 and 4000 rpms on the first dyno run, along with the more uneven increase in power in low and mid-range. The stretched chain, flying around the sprockets, tightening up then loosening causes this rough pattern.

Go to China Pump & Vacuum Equipment Manufacturer Catalog or China Pump & Vacuum Equipment Catalog to find more China Products!