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The 2-Stroke Garage => Turning Wrenches => Topic started by: rdsarefun on September 13, 2026, 07:51:22 AM

Title: RD350 front fender options with larger tires
Post by: rdsarefun on September 13, 2026, 07:51:22 AM
I picked up a project bike and am slowly going thru it (frame). The previous owner utilized the OEM hubs and had new wheels laced in with larger tires.  While reassembling the bike, I noticed that the front fender will not fit due to the tire width.  I searched the forum and found that Honda CB650 fenders are an option.  I wanted to know if anyone had some pictures of their bike with this on it and what year(s) of Honda CB would potentially work or other viable solutions to have a front fender. 
Title: Re: RD350 front fender options with larger tires
Post by: m in sc on September 13, 2026, 04:27:13 PM
or, a smaller tire. 100 is about as big as you want to go

that being said, you can get a nighthawk (82-83 650) fender to fit. however,  the stock fender acts as a brace. so aside from the decreased handling from a big tire, youll lose rigidity unless you add a brace.

some early xs650 fenders will bolt on as well
Title: Re: RD350 front fender options with larger tires
Post by: rdsarefun on September 13, 2026, 04:56:12 PM
Thanks for the quick reply.  The front tire is a 100/90-18 Pirelli Sport Demon. With regards to the Yamaha XS650 fender, is this a direct bolt on with the integral bracket? Please let me know.

Thanks
Title: Re: RD350 front fender options with larger tires
Post by: m in sc on September 13, 2026, 05:03:45 PM
i think so.

odd a 100 won't fit, ive uaed them before when a 90 wasnt available
Title: Re: RD350 front fender options with larger tires
Post by: rdsarefun on September 13, 2026, 06:17:11 PM
Thanks again,  Is their a certain year or years of the XS650 that fit?  I saw a few on Ebay and appears that they have a pretty big range, some are much nicer than others based upon early or later years
Title: Re: RD350 front fender options with larger tires
Post by: m in sc on September 13, 2026, 06:46:49 PM
not 100% sure. Tim (kawtriplefreak) has one in his rd. i think its a 78 or so. not sure
Title: Re: RD350 front fender options with larger tires
Post by: rdsarefun on September 13, 2026, 06:53:47 PM
Thank you, will reach out to him
Title: Re: RD350 front fender options with larger tires
Post by: Kawtriplefreak on September 13, 2026, 11:48:29 PM
My RD has a 2015 Yamaha SR400 fender I bought off Ebay for cheap. It was a slightly damaged dealer take-off according to the seller (barely visible light scratch)  If memory serves I had to elongate the mount bracket holes just a touch. Here's a pic

(https://i.postimg.cc/YScLNWxd/20260606-125210.jpg)[/url]
Title: Re: RD350 front fender options with larger tires
Post by: rdsarefun on September 14, 2026, 04:22:18 AM
Much appreciated, The stock fender on mine will not fit over the tire as the integral fork brace "indents" on each side and gets caught on the major diameter of the tire.  Quick research of the SR400 fender has the mounting points inline with the fender as it is wider altogether.  Thank You
Title: Re: RD350 front fender options with larger tires
Post by: bitzz on September 14, 2026, 10:57:46 AM
British bike parts suppliers can sell you fender "blanks", available in different lengths and widths, in mild steel, stainless or aluminium
Title: Re: RD350 front fender options with larger tires
Post by: IR8D8R on September 14, 2026, 11:39:07 AM
I have a later version of a TZ350 fender on my RD350. It's a fiberglass replica. Probably Airtech?
This one:
https://gpcycleworks.com/products/tz125h3

It does fit an RD350 even though the fork spacing is different. Installation was super easy.

There are a few that would probably fit there:
https://gpcycleworks.com/pages/search-results-page?q=Yamaha%20fenders

Airtech is now owned/manufactured by GP Cycleworks.

IR8D8R
Title: Re: RD350 front fender options with larger tires
Post by: m in sc on September 14, 2026, 12:48:40 PM
i forgot. sr. thats right. thanks timmy
Title: Re: RD350 front fender options with larger tires
Post by: Kawtriplefreak on September 14, 2026, 10:33:25 PM
You are welcome.
Title: Re: RD350 front fender options with larger tires
Post by: SmokeAddicted on September 16, 2026, 10:15:55 AM
I've since radically changed my RD, but the clearance with a 90/90 and XS fender was pretty close. It MIGHT work, but you'll have to cut the mount holes to make it work with a 90/90. Wish I took more pictures back then!
Title: Re: RD350 front fender options with larger tires
Post by: m in sc on September 16, 2026, 12:34:34 PM
fwiw those sr fenders are still avaliable new, Partzilla has them listed for about 200
Title: Re: RD350 front fender options with larger tires
Post by: IR8D8R on September 16, 2026, 02:16:30 PM
https://www.ebay.com/itm/327322451982?

Similar to the late TZ fender but without holes.
Title: Re: RD350 front fender options with larger tires
Post by: m in sc on September 16, 2026, 02:19:11 PM
still needs a brace.
Title: Re: RD350 front fender options with larger tires
Post by: IR8D8R on September 16, 2026, 02:51:55 PM
Of course,

https://rswracing.com/collections/rd350-400/products/yamaha-rd-350-400-and-daytona-400?srsltid=AU7gw4WDaVcJqtMtpG8Gcalq0h3pdrr9Nq32IvvQO1typcfl7ekjB4DV&variant=7808385515572