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  • Brand:B & B Cycle Restoration
  • Model:BBCR-305

Price : $749.95 $633.96

Available Options:
EJK Controller:

CRF250L\'12-20 - 305cc Big Bore Kit

B&B Cycle Restoration 305cc Big Bore Kit for the Honda CRF250L.


There's no replacement for displacement and this kit proves this point for the CRF250L.  

Big Bore Kit Includes:

  • Big bore cylinder
  • Big bore piston kit
  • Gaskets

REQUIRED: The 305cc version of the EJK is required to safely run this big bore kit.  Attempting to run it with stock EFI or even the EJK intended for the stock displacement will result in engine damage. 


1. This is a build to order product.  Build times can vary without notice.  If this is a concern do not place an order.

2. Once ordered this product can not be canceled or returned.

3. Kits are shipped via USPS directly from B&B

4. The required EJK is NOT the standard EJK control module. If you have the standard EJK controller, Dobeck will reprogram it for free. All you pay is shipping. 

5. No core return is required. However, B&B will buy your original cylinder for $75. Information on returning your cylinder to B&B will be included with the kit.

Photo for illustration purposes. Not actual product.