yea, the trick is if you can find a rim sprocket so you can use a taller rim. I did a hack port job on my dcs401 and with the extra torque I wanted to spin the chain faster since they run a lower rpm already. I have successfully modified a 026/260 clutch drum to fit the 401 but their circumference is just the right size for the clutch to fit and grab, but also too small on the OD for the brake band to grab and hold. I might even try some 325 nk on it if I get ambitious, maybe make a youtube video... we'll see... I have yet to make my grinder thread... Shh... dont remind philbert... LOL...