Due to global events relating to COVID-19, Renthal.com web sales will temporarily be closed for new orders. We apologies for any inconvenience and hope to be back accepting new orders soon.

Ultralight Rear Chainwheels

Renthal's hard anodised rear chainwheels are specifically designed for road and road racing applications.

They are CNC machined from the same 7075 T6 material as our offroad chainwheels, yet feature the increased longevity from the hard anodizing process.

Hard anodising is an integral surface coating which significantly increases the hardness and wear resistance of the chainwheel surface.

For the best way to find the correct 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.
twinwall
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.
twinwall
High strength specially enhanced 7075 T6 aluminium alloy is used to create the perfect rear chainwheel, that is both lightweight, durable and strong.
twinwall
To help improve overall wear resistance of Renthal Road Chainwheels a hard anodising coating is applied which increases the hardness of the material giving better wear resistance.
twinwall
As used by the Kawasaki World Superbike team. 2013, 2015, 2016, 2017 and 2018 World Superbike championship winning chainwheels
twinwall

Name Part Number A B C D E F Prices From: Purchase
112U-520 ULTRALIGHT GROOVED, 42T 112U-520-42GESI - - - - - - $71.95 Ex Tax: $71.95
112U-520 ULTRALIGHT GROOVED, 44T 112U-520-44 - - - - - - Black, Silver $72.95 Ex Tax: $72.95
112U-520 ULTRALIGHT GROOVED, 45T 112U-520-45GESI - - - - - - $72.95 Ex Tax: $72.95
112U-520 ULTRALIGHT GROOVED, 46T 112U-520-46GESI - - - - - - $72.95 Ex Tax: $72.95
112U-520 ULTRALIGHT GROOVED, 50T 112U-520-50 - - - - - - Black, Green, Silver $72.95 Ex Tax: $72.95
112U-520 ULTRALIGHT GROOVED, 54T 112U-520-54GEBK - - - - - - $72.95 Ex Tax: $72.95
121U-428 ULTRALIGHT GROOVED, 44T 121U-428-44GPSI - - - - - - $72.95 Ex Tax: $72.95
121U-428 ULTRALIGHT GROOVED, 46T 121U-428-46GPSI - - - - - - $69.95 Ex Tax: $69.95
121U-428 ULTRALIGHT GROOVED, 52T 121U-428-52GPSI - - - - - - $72.95 Ex Tax: $72.95
121U-428 ULTRALIGHT GROOVED, 54T 121U-428-54GPSI - - - - - - $72.95 Ex Tax: $72.95
123U-520 ULTRALIGHT GROOVED, 40T 123U-520-40GYSI - - - - - - Contact Distributor
123U-520 ULTRALIGHT GROOVED, 41T 123U-520-41GYSI - - - - - - $72.95 Ex Tax: $72.95
123U-520 ULTRALIGHT GROOVED, 43T 123U-520-43GYSI - - - - - - $72.95 Ex Tax: $72.95
123U-520 ULTRALIGHT GROOVED, 44T 123U-520-44GYSI - - - - - - $72.95 Ex Tax: $72.95
123U-520 ULTRALIGHT GROOVED, 45T 123U-520-45GYSI - - - - - - $72.95 Ex Tax: $72.95
123U-520 ULTRALIGHT GROOVED, 46T 123U-520-46GYSI - - - - - - Contact Distributor
123U-520 ULTRALIGHT GROOVED, 47T 123U-520-47GYSI - - - - - - $72.95 Ex Tax: $72.95
123U-520 ULTRALIGHT GROOVED, 53T 123U-520-53 - - - - - - Black, Silver $72.95 Ex Tax: $72.95
123U-520 ULTRALIGHT GROOVED, 54T 123U-520-54GYSI - - - - - - $72.95 Ex Tax: $72.95
124U-520 ULTRALIGHT, 43T 124U-520-43P-HA - - - - - - Contact Distributor
127A-520 STANDARD, 46T 127A-520-46P-HA - - - - - - $72.95 Ex Tax: $72.95
127A-520 STANDARD, 47T 127A-520-47P-HA - - - - - - Contact Distributor
129--428 GROOVED, 51T 129--428-51GPSI - - - - - - $72.95 Ex Tax: $72.95
129--520 GROOVED, 43T 129--520-43GPSI - - - - - - Contact Distributor
129B-520 GROOVED, 43T 129B-520-43GPSI - - - - - - $72.95 Ex Tax: $72.95
Dimensions Explained
handlebar dimensions