WR250F SM Conversion Qustions

C

ColdOnes

Well-known member
I have a 2013 WR250F I want to run at Sonoma and Stockton. So first off is this a good bike to convert? I keep reading everyone ends up with a 450 sooner or later. Is a YZ a better bike to convert than the WR?

I keep reading up on SM wheels and the information is sparse. It seems Wrap9, DNA and Behr all have people that like and don't like each one. I hate to ask but not sure where to turn for more info so any opinions on those three would be welcome. Excels are more than I'm looking to spend.

What else will I need to get going besides the wheels and a 320 rotor? Calipers, Pads, stainless steel brake lines, suspension? Figure I'm a solid "B" rider.
 
J

Junkie

gone for now
You'll want better suspension and a better brake setup. I think my WR450 was designed to be a trackbike. Supposedly suspension was reworked for supermoto, 4pot caliper, Brembo master (looks like I have a spare), etc.
 
Wicked4Racin

Wicked4Racin

MOJO Motorsports
If you want a really sick wheel set I can get you in contact with another barfr and close friend that is a Dubya wheels distributor and can set you up with a set of wheels that will last you longer than those you mention. I personally have excel pro series wheels on my 450 and the main difference between wheel companies is the hubs. You want a strong hub because that is the part that takes the most stress and is the most expensive part of a wheel. Some companies use the excel rings which are great but then they use their hub and that's the weak link. I would recommend a good set of wheels and a good caliper and rotor. A master you can run oem larger piston or like a streetbike master do you save a few hundred dollars. Dirt bikes usually have like 16 masters and street bikes use 18-19 and that larger piston has more breaking force. I personally have moto master caliper, rotor, and pads. Then I run a Honda TRX quad master and it works amazing. I'd rather have a solid set of wheels and brakes that will stop you on a dime, then you can make or go cheaper on the other items to convert it to sumo
 
J

Junkie

gone for now
A larger master cylinder means you need to apply more force for the same stopping power. A small master with a big caliper will feel mushy, meaning too soft... a moderately larger master will firm that up. Too big of a master and you'll need a lot of finger strength to stop quickly.
 
D

Daniel13

Well-known member
i had stock calipers, braided lines, oversized rotor, motul 600, and YZF450 (quad) master cylinder on my YZ450 and i HATED IT. I will never run a set up like that again... the upgraded calipers are well worth the money!
 
J

Junkie

gone for now
The brakes on my WR make the brakes on my SV (R6 calipers) feel like shit. Makes me want to upgrade the SV...
 
klx-rider

klx-rider

Well-known member
The only thing you need are tires, sliders, and a catch can. You can pick up some BT-45's that'll work with your existing rims if you don't want to shell out a lot of money right now. Then it'll turn into what you want and as the others have pointed out, it'll probably be brakes first.
 
Judaslefourbe

Judaslefourbe

Well-known member
klx-rider said:
The only thing you need are tires, sliders, and a catch can. You can pick up some BT-45's that'll work with your existing rims if you don't want to shell out a lot of money right now. Then it'll turn into what you want and as the others have pointed out, it'll probably be brakes first.
Click to expand...

+165416184164643654354315464 to what he said.
 
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