12112521 SPROCK R 520 44T SI UL SC

Name: RENTHAL SPROCK R 520 44T SI UL SC
Brand: RENTHAL
SKU: 12112521
Price: 50.58 GBP
Availability: OutOfStock

RRP £63.23 Save 20%

£50.58

incl. VAT

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Part #: 12112521

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§ 02 / About this part

What it is

The RENTHAL SPROCK R 520 44T SI UL SC, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

This rear sprocket mounts directly to your rear hub to drive the final transmission. Machined from 7075-T6 aluminium, it significantly reduces unsprung weight compared to stock steel parts. This improves rear suspension tracking and acceleration. The ultralight design features mud-clearing grooves at the base of each tooth to prevent dirt buildup and reduce chain tension spikes. Replace your sprocket when teeth begin to hook or thin out. Running a worn sprocket will ruin a new chain in hours. Always install with new sprocket bolts and a medium-strength thread lock. Ensure chain tension is adjusted to your bike manufacturer specifications.

§ 03 / Specs

The numbers

Brand: RENTHAL
Part number: 12112521
Weight: 0.40 kg
VAT: 20%

§ 05 / About Iron Offroad

Iron Offroad

Iron Offroad is the off-road sibling of Iron City and Iron Stable — a UK shop for motocross, enduro, and trail-bike hard parts. Every fitment lives on the site, listed against KTM, Husqvarna, GasGas, Yamaha, Honda, Kawasaki, Suzuki, and Beta. Pick your bike on the timing-tower. Our USP is the data: fully enriched fitment so you find the right part for your bike quickly and get it fitted accurately. 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 and e-moto only. We operate from our storage facility in Leeds. Iron Offroad is a trading name of Iron Stable Ltd, registered in Mildenhall — Company No. 17061294. The business has a rich motorcycle history across multiple moto brands — the photos show where we came from — and recently pivoted into hard parts and online retail.