Street. Track. Everything between.
07 3276 7829
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

Renthal Ultralight Rear Sprockets 121U-420-47GBSI DRIVE SPROCKETS, RENT REAR SPRKT SIL 420-47GBSI

SKU: REN121U-420-47GBSI

Sprockets

Renthal Ultralight Rear Sprockets 121U-420-47GBSI DRIVE SPROCKETS, RENT REAR SPRKT SIL 420-47GBSI

SKU: REN121U-420-47GBSI

Sprockets
A$126.87
IN STOCK! Est Ship 3-5 Days days. In stock at 1 location (10 available)

Added to cart

We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

Exclusive Renthal flash sale discount at StreetFX!

Talk about timing! This is a limited offer while stocks last on various Renthal part numbers. There's never been a better time to buy your Renthal upgrades, so what are you waiting for?!

This item is currently on sale!

Same-day payment required to secure promotional price. Promotions may end early or be extended based on stock levels or other factors.

Renthal 18-23 Yamaha YX65 Rear Grooved Sprocket - Silver 420-47P Teeth

Renthal UltraLight Rear Chainwheels are CNC machined 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. A 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 many factory race team machines.


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 10:26:07

Data: v4.2 - Upd: 2026-11-11 15:09:02

Features

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Renthal
StreetFX SKU ren121U-420-47GBSI
SFX Item ID 4946675
Accounting SKU ren-121U-420-47GBSI
Manufacturer SKU 121U-420-47GBSI
Manufacturer UPC 765442157605
Alternative References REN-S0002

DRIVE SPROCKETS, RENT REAR SPRKT SIL 420-47GBSI

Renthal Ultralight rear sprockets will withstand the rigors of supercross, motocross, and enduro racing. Manufactured to extremely tight tolerances, they are 66 percent lighter than steel, and yet incredibly durable. Renthal uses computer-aided design, high-strength specially enhanced 7075 T-6 aluminum alloy, and CNC-machining to produce sprockets that are high-strength, hard-wearing, and offer the maximum reduction of unsprung weight at the rear wheel for maximum power transfer. They've also added self-cleaning mud grooves between every tooth on both sides to prevent dirt buildup. Shouldn't you choose the sprockets chosen by more factory race teams? Join a winning team and install Renthal Ultralight rear sprockets.

Product Attributes
BrandRenthal
Manufacturer's Part Number121U-420-47GBSI
Part TypeSprockets
Product LineRenthal Ultralight Rear Sprockets
UPC765442157605
Front Sprocket IncludedNo
Rear Sprocket IncludedYes
Rear Sprocket Tooth Quantity47
Rear Sprocket MaterialAluminum
Rear Sprocket FinishSilver anodized
Fits Chain Size420
QuantitySold individually.

Compatibility

Loading compatibility information...

Keep shopping

More from Renthal