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TBpart or Trail Bikes 

All TBparts are sold with no expressed or Implied Warrantry 
No Instructions will be supplied in or with the products 

Installation Information:

Trail Bikes highly recommends a professional technician or your local Honda dealer install the bore kits for you. If planning on installing the kits yourself, there are helpful manuals, such as Clymer’s (visit www.clymer.com or see our Catalog), that will instruct the novice mechanic on how to rebuild an engine and maintain it properly. Honda also has shop manuals for the more advanced mechanics. The part number for the XR50 shop manual is 61GEL03 and in most cases, can be ordered through any local Honda dealer (we also stock them). Both manuals also provide many useful specifications. Additionally, we have provided some information below that will be helpful.


No warranty is provided or implied by Trail Bikes for any such use of products or damage caused by their use or abuse. All products sold by Trail Bikes are intended for off road use only. Buyer agrees to indemnify and hold seller harmless for any claim, action or demand arising out of or incident to buyer’s installation or use of products purchased from Trail Bikes. Dealers have been known to void warranties due to installation of performance parts. Trail Bikes assumes no responsibility, and therefore, all parts are to be installed at the purchaser's own risk.

Purchaser understands and recognizes that parts sold by Trail Bikes are subject to varied conditions due to the manner in which they are to be installed and/or used. The acceptability and suitability of any part sold or manufactured by Trail Bikes for a particular application is solely the purchasers decision. Trail Bikes makes no warranties whatsoever, expressed or implied, oral or written, there is no Warranty Of MerchantabilityThis website could contain typographical errors or technical inaccuracies. Trail Bikes may make improvements and/or changes in the technical specifications, products and promotions of said products described in this website at any time without prior notice.

In the event that our computer server/database encounters technical difficulties that cause problems with our product pricing, shipping calculations, or sales tax computations, Trail Bikes will correct all discrepancies at the time of processing. Customers will be notified of any errors and will have the option to continue with the order with corrected totals or to cancel the order. Trail Bikes will not be held responsible for any miscalculated totals due to server errors.