PRIMARY DRIVE CONVERSION SPROCKET SET 219 57T & 25T SUR-RON ULTRA BEE
4.1 Trustpilot 99.9% positive on eBay
Delivery to United States 5–8 business days
Spread the cost with 
- SKU
- UB-OEM-061
- Brand
- SUR-RON
- Availability
- In Stock (20)
- Date Created
- 19/06/2026 10:13:49
- Date Last Updated
- 17/08/2026 12:55:35
- Manufacturer
- SUR-RON
- On Order
- 0
Show more +2Show less
- Stock Id
- 354421
- Weight Grams
- 730
FULL DESCRIPTION
SUR-RON Primary Drive Conversion Sprocket Set 219 Chain 57T and 25T
ThisSUR-RON primary drive sprocket set is a 219 chain conversion kit that replaces the original primary belt drive with a chain-driven setup between the motor and secondary shaft. It uses a 25 tooth motor sprocket and a 57 tooth intermediate sprocket, and suits off-road use where belt drive systems can be exposed to mud, debris and heavy loads.
Key Features
- Converts the original primary belt drive to a chain drive system
- Intended for the primary transmission between the motor and secondary shaft
- Suitable for enduro, trail and muddy off-road riding conditions
- Supplied as a complete installation kit
- Helps reduce the risk of primary belt failure during demanding off-road use
Specifications
- Chain pitch: 219
- Motor sprocket: 25 teeth
- Intermediate sprocket: 57 teeth
- Sprocket material: Treated steel
- Sprocket finish: Zinc plated
- Chain colour: Gold
What's in the Box
- 1 x 25T motor sprocket
- 1 x 57T intermediate sprocket
- 1 x 219 chain
- 1 x Master link
- Mounting bolts
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).
Call or email us with your make, model and year and we will check it for you before you order.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. 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.
Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.