Honda CRF50F (XR50)

The Honda CRF50 is one of the most popular dirt bikes in the world. It all started in the 1960s with the Honda Mini-Trail 50. Over the years it has transformed many times as the QA50, Z50, XR50 and currently into the CRF50. You won’t find a more dedicated bunch of owners and racers than the Honda 50 crowd. BBR has been there from the start. From the backyard races around the world to the MiniMoto SX, BBR has been there and done that. Our staff and race team is passionate about the Honda 50s and are excited to share our products and knowledge with you. The must have items, to get you started on the 50, are the bar kit, exhaust system, tall seat, chain guide, springs and 88cc kit. From bar kits to the championship winning perimeter frame kits, BBR has you covered.

This page has some popular links to help you navigate our website for information on the Honda CRF50F (XR50) and help you find what you are looking for. If you have any questions, please feel free to contact us via e-mail or give us a quick phone call. Our staff is ready and waiting to help you make the most of your motorcycle.
Honda CRF50F (XR50) FAQ
Jetting Chart:
OEM Honda CRF50F (XR50) Specs
Bore and Stroke39.0mm x 41.4mm
Compression Ratio10.0:1
Spark PlugNGK CR6HSA
Valve ClearanceIN: .002" EX: .002"
Carb/main jet/pilot jet13mm Keihin / 58 main / NA
Transmission ratios3.272 / 1.667 / 1.190
Oil Capacity/Type0.8 US Quarts / 10W-30
Chain size/front sprocket/rear sprocket#420 chain; 14T/37T
Front tire size2.50-10
Rear tire size2.50-10
Seat height21.6 in.
Wheel Base36 inches
Weight110 lbs.
Part diagrams linkHonda CRF50F (XR50) Parts Diagrams (
Service manual linkHonda CRF50F (XR50) Service Manual (
Honda CRF50F (XR50) Related Videos

17,606 views · 10 years ago

BBR's engine experts show you how to adjust your minibike valves.
For more info. go to


16,846 views · 6 years ago

Duane Brown of BBR Motorsports, Inc. reviews the Honda CRF/XR50.
February 2010
For more info. go to


4,856 views · 10 years ago

Watch Kyle Coen soar over 100 feet on his BBR perimeter 50 for an official Guinness Book World Record.
For more info. go to


2,029 views · 10 years ago

BBR's experts show you how to install SP-5 forks on your mini.
For more info. go to