chain tensioner

i was fiddling with some stuff on my bike and 5 miles down the road my idler pulley came off... ididnt tighten it down enough. where can iget a new pulley

I really like the one that ThatsDax sells. I replaced the one that came with my kit with theirs. It has a ball bearing in it that made things run smoother for me. Some other people remove the tensioner altogether.

i made a custom tensioner mount that welded to the bike frame ...... and then didnt even use it

__________________
MEASURE ONCE AND CUT TWICE.......WAIT A MINUTE

This is a simple mod.................

Spring Return Chain Tensioner

__________________
"No such thing as a stupid question, just a stupid answer"

48cc Grubee Starfire Round Head......

is there a downside to going without the tensioner??

I replace them with a skateboard wheel with ceramic bearings.

__________________
If it ain't broke, and you mess with it long enough, it will be.

I'm pretty fond of the skateboard wheel too I thin them on the lathe and cut off the outer rubber or what ever that stuff is then make a little shoulder on each side seems to work very good.
Norman

__________________
norms-iron-works.tripod.com

Rollerblade wheels are also really good as they are already narrower and have a harder compound to the urethane so they last alot longer.

I grind the groove the old fashioned (or hard) way- on a bench grinder.

Hey Norman- I never knew there was an "outer tire" on those things and I was grinding the groove into my first one and the "re-tread" flew off like a road gator from a 100mph semi!

__________________
If it ain't broke, and you mess with it long enough, it will be.

You can buy them for downhill bikes but they are a rip off $ and you dont get to make it yourself