“This item fits Honda XR50, CRF50, and similar pit bikes like 50cc, 110cc and 125cc. This complete kit includes: … Some 07 CRF 50 model may need to drill extra holes to fit, simple modification though. Due to poor packaging …  Read more... (58 words, estimated 14 secs reading time)

Quote from Let's talk about Jetting: Post up your numbers! Base Motor: CRF50 Modifications: TB 108 race head kit ignition: BBR Rev Box otherwise stock. Exhaust: BBR Big Bore Intake Manifold: TB Carb Make, Size: Mikuni …  Read more... (46 words, estimated 11 secs reading time)

Also, to be competitive in the CRF 88cc Class, what would be recommended modifications? Estimating, How much would someone … By 50degree in forum CRF50/CRF70 Parts For Sale. Replies: 1. Last Post: 02-25-2009, …  Read more... (45 words, estimated 11 secs reading time)

Performance Modifications Have Modifications? Want to ask about a mod? Having problems with a certain mod? Ask and post here! Carbs, Exhausts, Engines, Etc.. … 2006 TRX400ex. Pro Taper bars ModQuad clamps ModQuad dashboard. K&N Filter DG nerf bars. Cobra ATV skid plates 2008 Honda CRF 100. Bone stock/Wife's bike 2004 Honda CRF50 Tall Seat / BBR bars. Adult rear spring/K&N filter. Brice_400ex is offline …. what size sprocket for xr50 …  Read more... (82 words, estimated 20 secs reading time)

Motorized Bicycle General Discussion Topics on bicycle engine kits, help articles, repair and modifications for your motorized bicycles … Has anyone on here thought about going w/ an engine from a dirt bike like a small crf 50 or something w trans and clutch already all together. wouldnt it be cheaper and more effective? … 88CC 86CC MOTOR ENGINE FOR HONDA CRF50 XR50 i am a very newbie. just bought a raodmaster on ebay and the guy didnt know what size …  Read more... (100 words, estimated 24 secs reading time)