REAR SPROCKET ALLOY SI RENTHAL, SILVER ULTRALITE 191U-420-50GESI, 191U-420-50GESI
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 sprocket, silver. Hard anodised rear chainwheel for road and road racing applications. CNC machined from 7075 T6 material with a hard anodizing process for increased hardness and wear resistance. Model number 191U-420-50GESI.
- SKU
- SR106-50.REN
- Brand
- Renthal
- Availability
- In Stock (2)
Fitments (69)
| Make | Model | Year |
|---|---|---|
| KAWASAKI | KX 100 | 1987 |
| KAWASAKI | KX 100 | 1988 |
| KAWASAKI | KX 100 | 1989 |
| KAWASAKI | KX 100 | 1990 |
| KAWASAKI | KX 100 | 1991 |
| KAWASAKI | KX 100 | 1992 |
| KAWASAKI | KX 100 | 1993 |
| KAWASAKI | KX 100 | 1994 |
| KAWASAKI | KX 100 | 1995 |
| KAWASAKI | KX 100 | 1996 |
| KAWASAKI | KX 100 | 1997 |
| KAWASAKI | KX 80 | 1979 |
| KAWASAKI | KX 80 | 1980 |
| KAWASAKI | KX 80 | 1981 |
| KAWASAKI | KX 80 | 1982 |
| KAWASAKI | KX 80 | 1983 |
| KAWASAKI | KX 80 | 1984 |
| KAWASAKI | KX 80 | 1985 |
| KAWASAKI | KX 80 | 1986 |
| KAWASAKI | KX 80 | 1987 |
| KAWASAKI | KX 80 | 1988 |
| KAWASAKI | KX 80 | 1989 |
| KAWASAKI | KX 80 | 1990 |
| KAWASAKI | KX 80 | 1991 |
| KAWASAKI | KX 80 | 1992 |
| KAWASAKI | KX 80 | 1993 |
| KAWASAKI | KX 80 | 1994 |
| KAWASAKI | KX 80 | 1995 |
| KAWASAKI | KX 80 | 1996 |
| KAWASAKI | KX 80 | 1997 |
| KAWASAKI | KX 80 | 1998 |
| KAWASAKI | KX 80 | 1999 |
| KAWASAKI | KX 80 | 2000 |
| KAWASAKI | KX 85 | 2001 |
| KAWASAKI | KX 85 | 2002 |
| KAWASAKI | KX 85 | 2003 |
| KAWASAKI | KX 85 | 2004 |
| KAWASAKI | KX 85 | 2005 |
| KAWASAKI | KX 85 | 2006 |
| KAWASAKI | KX 85 | 2007 |
| KAWASAKI | KX 85 | 2008 |
| KAWASAKI | KX 85 | 2009 |
| KAWASAKI | KX 85 | 2010 |
| KAWASAKI | KX 85 | 2011 |
| KAWASAKI | KX 85 | 2012 |
| KAWASAKI | KX 85 | 2013 |
| KAWASAKI | KX 85 | 2014 |
| KAWASAKI | KX 85 | 2015 |
| KAWASAKI | KX 85 | 2016 |
| KAWASAKI | KX 85 | 2017 |
| KAWASAKI | KX 85 | 2018 |
| KAWASAKI | KX 85 | 2019 |
| KAWASAKI | KX 85 | 2020 |
| KAWASAKI | KX B1 B19 60 | 1985 |
| KAWASAKI | KX B1 B19 60 | 1986 |
| KAWASAKI | KX B1 B19 60 | 1987 |
| KAWASAKI | KX B1 B19 60 | 1988 |
| KAWASAKI | KX B1 B19 60 | 1989 |
| KAWASAKI | KX B1 B19 60 | 1990 |
| KAWASAKI | KX B1 B19 60 | 1991 |
| KAWASAKI | KX B1 B19 60 | 1992 |
| KAWASAKI | KX B1 B19 60 | 1993 |
| KAWASAKI | KX B1 B19 60 | 1994 |
| KAWASAKI | KX B1 B19 60 | 1995 |
| KAWASAKI | KX B1 B19 60 | 1996 |
| KAWASAKI | KX B1 B19 60 | 1997 |
| KAWASAKI | KX B1 B19 60 | 1998 |
| KAWASAKI | KX B1 B19 60 | 1999 |
| KAWASAKI | KX B1 B19 60 | 2000 |
- General Product Group
- Chain & Sprockets
- General Product Type
- Sprockets & Components (Rear)
- Variant Id
- 277200
FULL DESCRIPTION
Renthal Ultralite Rear Sprocket - Silver
This Renthal Ultralite Rear Sprocket is engineered for superior performance and durability, featuring a hard anodised silver finish. It is CNC machined from high-grade 7075 T6 aluminum, the same premium material used in Renthal's offroad chainwheels, ensuring exceptional strength and lightness.
The hard anodising process is a crucial surface treatment that significantly enhances the sprocket's hardness and resistance to wear, making it ideal for demanding road and road racing conditions. This integral surface coating provides long-lasting performance and reliability.
Key Features:
- Manufacturer: Renthal
- Model: Ultralite
- Finish: Hard Anodised Silver
- Material: 7075 T6 Aluminum
- Design: Specifically for road and road racing applications
- Durability: Enhanced wear resistance due to hard anodising
- Precision: CNC machined for accuracy and optimal performance
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.
Check the fitment table on this page against your make, model and year. Not sure? Call or email us 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.