DirtyBike Rear Sprockets Surron Ultra Bee

Add a larger rear sprocket and get better acceleration! This is a must for off road. Better acceleration, better hill climbing and longer run time with only a small reduction in top speed. 

DirtyBike Industries sprockets are OEM quality zinc coated steel sprockets with beveled edges for smooth chain engagement. 

Keep sprockets aligned for minimum wear and greater efficiency with the Motion Pro sprocket alignment tool. Find the tool HERE!

Remember, It's always a good idea to replace the front and rear sprockets as a set to reduce premature sprocket and chain wear. 

Please verify your bike model and year before purchasing. If you have questions about fitment, contact us at info@elektrischesracing.com or use the chat below — we’re riders, and we’ll help you get the right part.

Most kits are plug-and-play. Installation guides are included in the box and available on our YouTube channel. For complex installations, we recommend watching our installation videos before starting.

Will this fit my bike?
Check the product title and description for compatible models. Contact us if unsure.

How long does shipping take?
Most orders ship within 1-3 business days from Laguna Beach, CA. Free shipping on orders over $200 (Lower 48).

Do you offer financing?
Yes! Shop Pay Installments and Affirm are available at checkout.

What’s your return policy?
We accept returns within 14 days on unused items in original packaging.