From cruising trails with buddies to serious off-road and on-track racing, ProX sprockets have delivered impressive durability, especially in steel construction. ProX steel rear sprockets have been proven in highly demanding racing situations, including worldwide Enduro as well as GNCC and Hare and Hound in the U.S. While they last beyond what may even seem possible sometimes, the main disadvantage for steel has always been the extra weight in comparison to ProX aluminum sprockets.
ProX engineers set out to revise the steel sprocket with the goal of achieving the best of both worlds - the extreme durability of ProX's steel construction with the advantages of less weight.
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An all-new, lightweight design gives ProX Ultralight steel rear sprockets up to a 35% weight savings over other standard steel sprockets. The high-strength, steel construction provides superior longevity even in extreme riding conditions, ultimately translating to 2 to 3 times the usable life compared to average aluminum sprockets.
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ProX Ultralight sprockets are CNC-machined to exact specifications to achieve the precise, lightweight design and exact fitment. Additionally, a diamond cut manufacturing method holds sprocket teeth to diameter and alignment tolerances, ensuring even and smooth operation.
Reliable, flush sprocket-to-hub mounting is achieved with countersunk, tapered mounting holes, pairing perfectly with a set of ProX sprocket bolts and lock nuts. These sprockets are also treated with a full coverage coating for added corrosion and wear resistance, plus a factory look.
ProX Ultralight steel sprockets are offered for a wide range of dirt bike applications in all popular sizes.
Purchase from your favorite e-tailer or dealer, or contact us to order directly in the US!
Find your Ultralight sprocket part number below.
|
Make |
Models |
Years |
Part No. |
Size |
|
Beta |
RR 125 - 498 |
2013 – 2022 |
07.RS73013R-48 |
48T |
|
Honda |
CR125R, CR250R, CRF250R, CRF450R |
1987 – 2022 |
07.RS12087R-48 07.RS12087R-49 07.RS12087R-50 07.RS12087R-51 07.RS12087R-52 |
48T 52T |
|
Husqvarna |
CR/W 125 – 360 |
1990 – 2013 |
07.RS62097R-46 07.RS62097R-47 07.RS62097R-48 07.RS62097R-49 07.RS62097R-50 07.RS62097R-51 07.RS62097R-52 |
46T 47T 48T 52T |
|
Husqvarna |
TC85 |
2014 – 2022 |
07.RS61003R-46 07.RS61003R-47 07.RS61003R-48 07.RS61003R-49 07.RS61003R-50 07.RS61003R-51 |
46T 47T 48T |
|
Husqvarna |
TC/FC/FE 125 – 501 |
2014 – 2022 |
07.RS62090R-48 07.RS62090R-49 07.RS62090R-50 07.RS62090R-51 07.RS62090R-52 |
48T 52T |
|
Kawasaki |
KX 125/250/250F/450F |
1987 – 2021 |
07.RS42080R-47 07.RS42080R-48 07.RS42080R-49 07.RS42080R-50 07.RS42080R-51 07.RS42080R-52 |
47T 48T 52T |
|
KTM |
85/105 SX |
2003 – 2022 |
07.RS61003R-46 07.RS61003R-47 07.RS61003R-48 07.RS61003R-49 07.RS61003R-50 07.RS61003R-51 |
46T 47T 48T |
|
KTM |
125 – 530 SX/XC/EXC, |
1990 – 2022 |
07.RS62090R-48 07.RS62090R-49 07.RS62090R-50 07.RS62090R-51 07.RS62090R-52 |
48T 52T |
|
Suzuki |
RM-Z 250 RM-Z 450 |
2007 – 2022 2005 – 2022 |
07.RS32080R-48 07.RS32080R-49 07.RS32080R-50 07.RS32080R-51 07.RS32080R-52 |
48T 52T |
|
Yamaha |
YZ 125/250 WR250 |
1980 – 1998 |
07.RS22080R-48 07.RS22080R-49 07.RS22080R-50 07.RS22080R-51 07.RS22080R-52 |
48T 52T |
|
Yamaha |
YZ/WR 250/400/426/450F |
1998 – 2022 |
07.RS22099R-47 07.RS22099R-48 07.RS22099R-49 07.RS22099R-50 07.RS22099R-51 07.RS22099R-52 |
47T 48T 52T |
