REAR SPROCKET ORANGE ALLOY RENTHAL 47T, 2025 GASGAS/HUSQVARNA/KTM, ULTRALITE 518U-420-47GPOR
4.1 Trustpilot 99.9% positive on eBay
UK delivery £4.99, free over £60 2–4 business days
Spread the cost with 
18+, T&Cs apply
Renthal Ultralite rear chain wheel, 47 tooth, 518U-420-47GPOR, orange. Precision CNC machined from high-strength 7075 T6 aluminium. Offers a 66% weight reduction compared to steel alternatives. Engineered with tight tolerances for accurate fitment and superior load dispersion. Features optimised tooth profiling for maximum power transfer. Hard wearing surface treatment for extended durability. Used by more factory race teams than any other aluminium sprocket brand. 200 grams.
- SKU
- SR518-47.REN.OR
- Brand
- Renthal
- Availability
- In Stock (2)
- Variant Id
- 346822
FULL DESCRIPTION
Renthal Ultralite 518U 420 Series Rear Sprocket 47 Tooth Orange Alloy
Enhance your motorcycle's performance and reduce unsprung weight with the Renthal Ultralite 518U Series Rear Sprocket. Precision CNC machined in Manchester, UK, this sprocket is crafted from high-strength 7075 T6 aluminum, offering a significant 66% weight reduction compared to traditional steel sprockets.
Engineered with extremely tight tolerances for accurate fitment and superior load dispersion, each sprocket features optimized tooth profiling to maximize power transfer and ensure efficient operation. The hard-wearing surface treatment provides extended durability, making it a reliable choice for demanding riders.
Key Features:
- Manufactured from high-strength 7075 T6 aluminum.
- 66% lighter than equivalent steel sprockets.
- CNC machined to extremely tight tolerances for precise fitment.
- Computer-engineered for optimal load dispersion and power transfer.
- Hard wearing surface treatment for extended durability.
- Trusted by more factory race teams than any other aluminum sprocket brand.
- Vibrant orange alloy finish.
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.
Call or email us with your make, model and year and we will check it for you before you order.
UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.