Ultralight Rear

Renthal Ultralight™ rear chainwheels are manufactured to extremely tight tolerances from  7075 T6 aluminium alloy which is 66% lighter than steel, yet incredibly durable. Their advanced tooth profile, concentricity and accuracy of fit provide maximum power transfer and long-life.

Renthal's combination of a high strength base material and exceptionally hardwearing surface result in significantly increased chainwheel life over other brands.

For the best way to find the correct Renthal UltraLight Rear Chainwheel for your model, use our Fit My Bike feature.

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 Tanium. 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
124U-520 ULTRALIGHT, 43T 124U-520-43P-HA - - - - - - $1,000.00 Ex Tax: $1,000.00
127A-520 STANDARD, 46T 127A-520-46P-HA - - - - - - $1,000.00 Ex Tax: $1,000.00
127A-520 STANDARD, 47T 127A-520-47P-HA - - - - - - Contact Distributor
131A-428 STANDARD, 53T 131A-428-53P-HA - - - - - - $1,000.00 Ex Tax: $1,000.00
141 ULTRALIGHT GROOVED, 46T 141U-420-46GPHA - - - - - - Contact Distributor
141 ULTRALIGHT GROOVED, 50T 141U-420-50GPHA - - - - - - Contact Distributor
154V-520 ULTRALIGHT GROOVED, 39T 154V-520-39GRHA - - - - - - $1,000.00 Ex Tax: $1,000.00
154V-520 ULTRALIGHT GROOVED, 40T 154V-520-40GRHA - - - - - - $1,000.00 Ex Tax: $1,000.00
154V-520 ULTRALIGHT GROOVED, 41T 154V-520-41GRHA - - - - - - $1,000.00 Ex Tax: $1,000.00
154V-520 ULTRALIGHT GROOVED, 42T 154V-520-42GRHA - - - - - - $1,000.00 Ex Tax: $1,000.00
154V-520 ULTRALIGHT GROOVED, 43T 154V-520-43GRHA - - - - - - AluGold $1,000.00 Ex Tax: $1,000.00
154V-520 ULTRALIGHT GROOVED, 44T 154V-520-44GRHA - - - - - - Contact Distributor
175--520 STANDARD, 39T 175--520-39P-HA - - - - - - Contact Distributor
184U-520 ULTRALIGHT, 38T 184U-520-38P-HA - - - - - - $1,000.00 Ex Tax: $1,000.00
184U-520 ULTRALIGHT, 39T 184U-520-39P-HA - - - - - - $72.95 Ex Tax: $72.95
184U-520 ULTRALIGHT, 40T 184U-520-40P-HA - - - - - - $72.95 Ex Tax: $72.95
184U-520 ULTRALIGHT, 41T 184U-520-41P-HA - - - - - - $72.95 Ex Tax: $72.95
184U-520 ULTRALIGHT, 42T 184U-520-42P-HA - - - - - - $72.95 Ex Tax: $72.95
184U-520 ULTRALIGHT, 43T 184U-520-43P-HA - - - - - - $72.95 Ex Tax: $72.95
184U-520 ULTRALIGHT, 45T 184U-520-45P-HA - - - - - - $72.95 Ex Tax: $72.95
184U-520 ULTRALIGHT, 46T 184U-520-46P-HA - - - - - - $72.95 Ex Tax: $72.95
184U-520 ULTRALIGHT, 47T 184U-520-47P-HA - - - - - - $72.95 Ex Tax: $72.95
184U-520 ULTRALIGHT, 48T 184U-520-48P-HA - - - - - - $1,000.00 Ex Tax: $1,000.00
199U-520 ULTRALIGHT, 39T 199U-520-39P-HA - - - - - - Contact Distributor
199U-520 ULTRALIGHT, 44T 199U-520-44P-HA - - - - - - $1,000.00 Ex Tax: $1,000.00
199U-520 ULTRALIGHT, 45T 199U-520-45P-HA - - - - - - $1,000.00 Ex Tax: $1,000.00
199U-520 ULTRALIGHT, 46T 199U-520-46P-HA - - - - - - $1,000.00 Ex Tax: $1,000.00
200U-520 ULTRALIGHT, 45T 200U-520-45P-HA - - - - - - $1,000.00 Ex Tax: $1,000.00
206U-520 ULTRALIGHT, 44T 206U-520-44P-HA - - - - - - Contact Distributor
206U-520 ULTRALIGHT, 45T 206U-520-45P-HA - - - - - - $1,000.00 Ex Tax: $1,000.00
Dimensions Explained
handlebar dimensions