Drivetrain› Belt and Chain Drive

Renthal

Renthal 18-24 KTM 85 SX/ Husqvarna TC 85/ GasGas MC85 Front Grooved Sprocket - 428-13P Teeth

$44.53

SKU: R0A9 503--428-13GP

In Stock
In Stock
Ships by Jun 20
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Renthal Front Grooved Sprocket is a 13-tooth front sprocket designed for a 428 chain pitch. It is CNC-machined from case-hardened and core-refined 655M13 nickel chromium steel. The sprocket features self-cleaning mud grooves at each tooth to prevent buildup and increase wear resistance. Its ultralight design offers a 10-15% weight saving.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandRenthal
Part NumberR0A9 503--428-13GP

Videos

Renthal Dirt Bike Chain and Sprocket Overview

Renthal Dirt Bike Chain and Sprocket Overview
How to install Renthal Ultralight Front Sprocket • Renthal Tech Tips

How to install Renthal Ultralight Front Sprocket • Renthal Tech Tips
New Chain And Sprockets For The CRF450L / D.I.D. ERVT / Supersprox 52T / Renthal / Zeta

New Chain And Sprockets For The CRF450L / D.I.D. ERVT / Supersprox 52T / Renthal / Zeta

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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