• Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

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How TE250 converted to SM will perform?

Alberto

Alberto

Husqvarna
AA Class
Hey Guys

If I put SM wheels on a TE250 and use it on the street, how many hours or Miles will the engine last before it requires overhaul? is it safe for the bike to use it that way?
 
Short answer? No The manual warns about it in the first section but some have done it with careful maintenance schedules and high gearing. The gearbox is ultra close and built for racing off road. It will work but be aware.
 
In my exp. if you go this route, you will need to gear it relatively low so that it has good pickup, a 250 does not have much power to pull high speed geared up. So say you run 14/48 with dirt wheels, and you swap to 17's you will probably need to run 15/44 and you may not have good compromise between acceleration and cruise rpm's.


Tons of people do it, it will be fun and you will carry a ton of corner speed and being able to rip it mid corner without it sliding out would be fun. But the high rpm's will be hard on the bottom end in the long run.
 
reveille said:
Short answer? No The manual warns about it in the first section but some have done it with careful maintenance schedules and high gearing. The gearbox is ultra close and built for racing off road. It will work but be aware.
Click to expand...
so the gearbox will suffer? will the bike need engine replacement soon lets say 100hrs?
 
huskylove said:
In my exp. if you go this route, you will need to gear it relatively low so that it has good pickup, a 250 does not have much power to pull high speed geared up. So say you run 14/48 with dirt wheels, and you swap to 17's you will probably need to run 15/44 and you may not have good compromise between acceleration and cruise rpm's.


Tons of people do it, it will be fun and you will carry a ton of corner speed and being able to rip it mid corner without it sliding out would be fun. But the high rpm's will be hard on the bottom end in the long run.
Click to expand...
how many miles/hours do you think the engine will support before it needs to open it overhaul it? saying I will not revv it and will have good maintenance?
 
Many argue whether or not you can super moto a 250/310. It's not designed for sustained high rpm at all. I rebuild engines, so I say go for it. Not sure on how it will begin or perform, but I know how it will end. Smoke and fire, lots of fire.
 
Tinken said:
Many argue whether or not you can super moto a 250/310. It's not designed for sustained high rpm at all. I rebuild engines, so I say go for it. Not sure on how it will begin or perform, but I know how it will end. Smoke and fire, lots of fire.
Click to expand...

LOL! but if I use it with care, say to keep it under 6k rpm and not long periods, will this bike last for at least 10 000 miles?
 
What gearing are you running? Most of us have 13/50 to make the bike usable off road. If you still have the stock gearing of 13/40 I could believe that you aren't revving high but that gearing isn't ideal. IMO
 
reveille said:
What gearing are you running? Most of us have 13/50 to make the bike usable off road. If you still have the stock gearing of 13/40 I could believe that you aren't revving high but that gearing isn't ideal. IMO
Click to expand...

I use both.. depending on what Im planning to do.. for off road/enduro 13/50, for DS 13/40
 
Alberto said:
what do you think about 14/45 too tall?
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Nope, to short for the Hi-way, Great for all around -55mph
My bike was shipped with a 40 (installed) and a 50 and 2 chains. The 40 sucked.... put the 50 on and did some miles in the dirt to break it in. Then I swaped the wheels(17s) from my 07 510smr with a stock 42 and liked it. If your bike is all powered up ??? go with the 42 if not, 45-47 for surface roads -55
 
510 SM SC said:
Nope, to short for the Hi-way, Great for all around -55mph
My bike was shipped with a 40 (installed) and a 50 and 2 chains. The 40 sucked.... put the 50 on and did some miles in the dirt to break it in. Then I swaped the wheels(17s) from my 07 510smr with a stock 42 and liked it. If your bike is all powered up ??? go with the 42 if not, 45-47 for surface roads -55
Click to expand...

great advice.. my bike is powered up.. and it came with 40 and 50 rear sprockets and two chains as well..
 
Alberto said:
great advice.. my bike is powered up.. and it came with 40 and 50 rear sprockets and two chains as well..
Click to expand...

Thanks. I try to keep my wheel base as short as possible, so I can flick it around. So I have (3 ) chains and gearing,,,,
 
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