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Ultralight Rear

Renthal UltraLight Rear Chainwheels are CNC machined in Manchester, UK from 7075 T6 aluminum to extremely tight tolerances, 66% lighter than steel. Computer engineered and tested to ensure a precise fitment, concentricity and load dispersion with tooth profiling to provide maximum power transfer.

With Renthal's combination of high strength base material, cutting edge manufacturing methods and exceptional hardwearing surface treatments its clear to see why Renthal’s light weight all aluminum rear sprockets can be found on the rear wheels of more factory race team machines than all other competing brands combined.

For the best way to find the correct chainwheel for your motorcycle, use our Fit My Bike Parts Finder.


Useful Ultralight™ Rear Chainwheel Links
Installation Instructions Street / Road Ultralight™ Rear Chainwheels
Accordion
Designed to keep revolving un-sprung mass to an absolute minimum and power transfer at a maximum, Renthal Ultralight™ rear chainwheels are 66% lighter than steel.
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Each Ultralight™ Rear Chainwheel that leaves Renthal's engineering facilities in the UK is individually CNC machined to the tightest possible tolerances, ensuring an accurate and reliable fit.
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High strength specially enhanced 7075 T6 aluminium alloy is used to create the perfect rear chainwheel, that is both lightweight, durable and strong.
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Ultralight™ Rear Chainwheels feature Renthal's self cleaning mud groove technology between each tooth. This prevents mud build up that traditionally leads to quicker wearing components.
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Ultralight Rear Chainwheels are available in 6 colours to help you personalise your setup. The available colours are Black, Blue, Red, Green, Orange and Silver. The anodised surface finish provides an integral coating preventing corrosion. A 15 step process is carefully carried on on each chainwheel individually.
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Renthal Ultralight™ chainwheels are used by more factory motocross and supercross teams than any other chainwheel in the world
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Name Part Number A B C D E F Prices From: Purchase
421U-520 ULTRALIGHT, 46T 421U-520-46P-HA - - - - - - $93.45 Ex Tax: $93.45
430U-420 ULTRALIGHT GROOVED, 33T 430U-420-33GESI - - - - - - $93.45 Ex Tax: $93.45
430U-420 ULTRALIGHT GROOVED, 34T 430U-420-34GESI - - - - - - $93.45 Ex Tax: $93.45
430U-420 ULTRALIGHT GROOVED, 35T 430U-420-35GESI - - - - - - $93.45 Ex Tax: $93.45
430U-420 ULTRALIGHT GROOVED, 36T 430U-420-36GESI - - - - - - $93.45 Ex Tax: $93.45
430U-420 ULTRALIGHT GROOVED, 37T 430U-420-37GESI - - - - - - $93.45 Ex Tax: $93.45
430U-420 ULTRALIGHT GROOVED, 38T 430U-420-38GESI - - - - - - $93.45 Ex Tax: $93.45
430U-420 ULTRALIGHT GROOVED, 39T 430U-420-39GESI - - - - - - $93.45 Ex Tax: $93.45
435U-520 ULTRALIGHT, 38T 435U-520-38P-HA - - - - - - Contact Distributor
435U-520 ULTRALIGHT, 41T 435U-520-41P-HA - - - - - - $93.45 Ex Tax: $93.45
435U-520 ULTRALIGHT, 42T 435U-520-42P-HA - - - - - - $93.45 Ex Tax: $93.45
435U-520 ULTRALIGHT, 43T 435U-520-43P-HA - - - - - - $93.45 Ex Tax: $93.45
435U-520 ULTRALIGHT, 44T 435U-520-44P-HA - - - - - - $93.45 Ex Tax: $93.45
435U-520 ULTRALIGHT, 45T 435U-520-45P-HA - - - - - - $93.45 Ex Tax: $93.45
435U-520 ULTRALIGHT, 46T 435U-520-46P-HA - - - - - - $93.45 Ex Tax: $93.45
437U-520 ULTRALIGHT GROOVED, 36T 437U-520-36GBSI - - - - - - $93.45 Ex Tax: $93.45
437U-520 ULTRALIGHT GROOVED, 37T 437U-520-37GBSI - - - - - - $93.45 Ex Tax: $93.45
437U-520 ULTRALIGHT GROOVED, 38T 437U-520-38GBSI - - - - - - $93.45 Ex Tax: $93.45
437U-520 ULTRALIGHT GROOVED, 39T 437U-520-39GBSI - - - - - - $93.45 Ex Tax: $93.45
437U-520 ULTRALIGHT GROOVED, 40T 437U-520-40GBSI - - - - - - $93.45 Ex Tax: $93.45
441U-428 ULTRALIGHT GROOVED, 44T 441U-428-44 - - - - - - Orange $97.95 Ex Tax: $97.95
441U-428 ULTRALIGHT GROOVED, 44T 441U-428-44GPSI - - - - - - Contact Distributor
441U-428 ULTRALIGHT GROOVED, 49T 441U-428-49 - - - - - - Blue, Orange, Silver $93.45 Ex Tax: $93.45
441U-428 ULTRALIGHT GROOVED, 50T 441U-428-50 - - - - - - Blue, Orange, Silver $93.45 Ex Tax: $93.45
441U-428 ULTRALIGHT GROOVED, 51T 441U-428-51GPSI - - - - - - $93.45 Ex Tax: $93.45
456U-520 ULTRALIGHT, 44T 456U-520-44P-HA - - - - - - Contact Distributor
456U-520 ULTRALIGHT, 45T 456U-520-45P-HA - - - - - - $93.45 Ex Tax: $93.45
456U-520 ULTRALIGHT, 46T 456U-520-46P-HA - - - - - - $93.45 Ex Tax: $93.45
456U-520 ULTRALIGHT, 47T 456U-520-47P-HA - - - - - - $93.45 Ex Tax: $93.45
456U-520 ULTRALIGHT, 48T 456U-520-48P-HA - - - - - - $93.45 Ex Tax: $93.45
Dimensions Explained
handlebar dimensions