REAR SPROCKET STEEL ULTRALIGHT, PROX 07.RS62090R-51, SR990-51
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
PROX Steel Rear Sprockets. Quality hardened steel. ProX Racing Parts ultra-light steel rear sprockets are manufactured from premium quality QSTE 420 and 460 high strength steel, offering superior durability even under extreme riding conditions. These sprockets will last 2-3 times longer than aluminum sprockets made from T7075-T6. SKU SR990-51. 51 teeth.
- SKU
- SR990-51_S.PROX
- Brand
- Pro-X Racing
- Availability
- In Stock (1)
- General Product Group
- Chain & Sprockets
- General Product Type
- Sprockets & Components (Rear)
- Variant Id
- 279486
FULL DESCRIPTION
ProX Steel Ultralight Rear Sprocket
Experience superior durability and performance with the ProX Steel Ultralight Rear Sprocket. Crafted from premium quality QSTE 420 and 460 high-strength steel, this sprocket is engineered to withstand the most demanding riding conditions.
This ultralight steel sprocket offers exceptional longevity, lasting 2-3 times longer than traditional aluminum sprockets made from T7075-T6 alloy. Its robust construction ensures reliable performance and extended service life for your motorcycle.
Key Features:
- Manufactured from premium QSTE 420 & 460 high-strength steel
- Ultralight design for reduced unsprung weight
- Exceptional durability for extreme riding conditions
- 2-3 times longer lifespan compared to T7075-T6 aluminum sprockets
- Hardened steel construction for maximum wear resistance
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.