RENTHAL SPROCKET F 520 13T UL

§ 01 / Part

12121440 SPROCKET F 520 13T UL

Fits 2 bikes
£32.83 Save 15%
£27.91

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 12121440

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RENTHAL

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§ 02 / About this part

What it is

The RENTHAL SPROCKET F 520 13T UL, sprockets. Stocked by Iron Offroad, the UK MX hard parts specialist.

This steel countershaft sprocket sits on your gearbox output shaft to drive the final transmission. It features mud grooves machined into the tooth base to shed debris and prevent chain tension spikes in heavy UK conditions. You should replace this part when teeth begin to hook or show visible thinning. Always fit a new sprocket when installing a fresh chain to avoid accelerated wear on the rollers. Ensure the lock washer is bent correctly or the circlip is fully seated during installation. Changing tooth count here significantly alters your bike's bottom-end snap or top-end speed.

§ 03 / Specs

The numbers

Brand
RENTHAL
Part number
12121440
Category
Sprockets
Weight
0.13 kg
VAT
20%

// Fitment

Will it fit your bike?

Fits 2 models · 2 year-bands

* Fitment data is provided as a guide. Verify compatibility against the bike's owner's manual or service handbook before ordering. Iron Offroad accepts no liability for incorrect application. Full terms and conditions apply.

§ 05 / About Iron Offroad

Iron Offroad

Iron Offroad is the off-road sibling of Iron City and Iron stable — this is a UK shop for motocross, enduro, and trail-bike hard parts. All fitments live on the site, and listed against MX models KTM, Husqvarna, GasGas, Yamaha, Honda, Kawasaki, Suzuki, and Beta. Pick your bike on the timing-tower. Our USP is in the data, fully enriched to assist with accurate fitting and finding the right part for your bike quickly and easily. Brands you'd find on a paddock workbench; pads, sprockets, plastics, fork seals, cables, gaskets, bars, the things that actually wear out. Road-bike kit, scooter parts, and quad gear sit elsewhere. Dirt & e-moto only. We operate from our huge storage facility in Leeds. Iron Offroad is a trading name of Iron Stable Ltd, registered in Mildenhall — Company No. 17061294. We have a RICH motorcycle history with multiple moto brands the images showing where we came from and our history, the business recently pivoted into hard parts and online retail.
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Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK-based support · 9 to 5 Race-shop prices, paddock service Click & collect from Leeds
Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK-based support · 9 to 5 Race-shop prices, paddock service Click & collect from Leeds