Re: XL250 Trans-America Hell Ride
the static rollers are indeed a good thing and all the lower roller is all that is needed on any moderm mx or offroad bike to keep sl;ack to an acceptable minimum
it is impossible to mount a stationary roller that will remove all slack.
AND the top one is not a tensioner ,it just to keep the chain from slapping the airbox or any upper frame parts you cannot put a tensioner on the top chain run
but all of the modern era machines are designed specifically to have the c/s close to the swinger pivot this is how they can get away with just a cupl staionary rollers
because they dont even have the wild swings in tension to deal with in the first place
back in the day a twin shocker with long travel that still was of the old design (we built some of them at home)well you had to use a spring loaded unit .a stationary one down below only can handle a portion of the slack while at max droop
spring loaded tensioners came stock on many mx/offroad/enduro bikes from the factory all the way into the 80's ...the only factory that did not completely redesign the entire gearbox and lower cases to specifically deal with the issue of chain slack madness was bultaco..besides senor bulto was kidnapped and murderd and that was all she wrote no more bultacos :'( :'( :'( :'(
and once agin a staitonary wheel can only be used to take out a bit of the slack at full droop,try to mount it up under the chain to remove all slack then it comes tight too quick
its just the way she goes bubs
i will go ahead and set the record straight with cold hard facts set in stoneTune-A-Fish said:If you look closely in the last pic you will seee that it has not one but two rollers' static mounted to the frame, one upper and one back and lower.
You don't need to add a tensioner because the thing has two auto tensioners... As the swingarm travels those "tensioners" come in contact (bind) with the chain to prevent too much slack and ALSO to keep the chain "slap" from damaging anything.
Most after market spring loaded tensioners were designed for Trials, not long travel suspension.
I didn't know you were racing Daytona next week
the static rollers are indeed a good thing and all the lower roller is all that is needed on any moderm mx or offroad bike to keep sl;ack to an acceptable minimum
it is impossible to mount a stationary roller that will remove all slack.
AND the top one is not a tensioner ,it just to keep the chain from slapping the airbox or any upper frame parts you cannot put a tensioner on the top chain run
but all of the modern era machines are designed specifically to have the c/s close to the swinger pivot this is how they can get away with just a cupl staionary rollers
because they dont even have the wild swings in tension to deal with in the first place
back in the day a twin shocker with long travel that still was of the old design (we built some of them at home)well you had to use a spring loaded unit .a stationary one down below only can handle a portion of the slack while at max droop
spring loaded tensioners came stock on many mx/offroad/enduro bikes from the factory all the way into the 80's ...the only factory that did not completely redesign the entire gearbox and lower cases to specifically deal with the issue of chain slack madness was bultaco..besides senor bulto was kidnapped and murderd and that was all she wrote no more bultacos :'( :'( :'( :'(
and once agin a staitonary wheel can only be used to take out a bit of the slack at full droop,try to mount it up under the chain to remove all slack then it comes tight too quick
its just the way she goes bubs
