Has anyone tried the above combination. There are times I need very low end power to power over rocks and creep through very tight situations. Right now I run a stock 47 tooth rear and 12 tooth front. I have tried the airbox mod, FMF fatty pipe, Vforce power reads, and Torque Rings. With the trail systems I ride it's rare I every get into fifth and sixth gear.
12 tooth front/50 tooth rear sprockets
- Thread starter mlhend1
- Start date
You'd be better off sticking with the larger CS sprocket.
An 11t is much too hard on a 520 chain and it will wear out faster than with a larger sprocket.
An 11t is much too hard on a 520 chain and it will wear out faster than with a larger sprocket.
I have race a lot of hairscrambles and trail rides in 8 years about 8 to 8500 miles, Only bought 2 chains, 2--11 tooth and one 12, Still on the same rear sprockets the key on long wear is to reverse the sprockets front and rear every few races or long rides. I seen guys go through 2 or 3 sets in one season. The reason is they don't flip them over. I hope this helps.
dixie,
The key to longevity is not to flip your sprockets when they are worn.
They are worn for a reason....your chain has worn them. The chain is worn out if the teeth are deformed on either front or rear.
Flipping a sprocket around will actually accelerate the wear on the chain, and in turn accelerate the wear on the sprockets.
When a chain grows due to wear, it tends to change where it wants to ride on a sprocket...in other words the roller can't remain in the seat between the teeth so it tends to ride up on the teeth. If your chain has lengthened a bit, it will more than likely wear on the teeth slightly. When you flip the sprocket around you have now introduced the original new pitch back to a chain that is now at a different pitch. This mis-match of pitch WILL accelerate the wear on the chain becasue it has a harder time finding a good pitch center in which to ride. The teeth are now putting an undue strain on the chain reels and they can't distribute the force well.
You must first understand that it is not sprockets that wear out chains, it's chains that wear out sprockets...for the most part. When you flip a sprocket around you have fallen into the relm of sprockets helping to wear out chain.
Also, as in this thread, going to a smaller CS sprocket helps to accelerate wear on the chain, as it is too small for the chain to negotiate without undue stress.
The key to longevity is to keep your chain precisely adjusted, well cleaned, and well lubricated with the proper lubricant. If you do this, and change out your chain when it reaches 1.5% of it's original pitch length, then your sprockets will last and last, and with no need to turn them around.
Besides, there are very few dirt bike rear sprockets that you can turn around without machining a counterbore into the bolt holes.
The guys who go through 2 or three sets a season do not follow good chain and sprocket maintenance, and that is why they fail. It has nothing to do with them not flipping their sprockets. (nothing to do with the brute force of their killer bike either...they often times like to blame that)
Do me a favor and go measure your multi-year old chain properly and let me know how long the pitch is, then we can talk more. Sounds to me like you are risking a bad crash by running worn out chains with such confidence. But wait...I'm not saying you aren't getting that long of life from your equipment...it may well be that you are following great chain maintenance and as a result enjoy much longer life than others do (you'd be in a vast minority though).
Running an 11t front makes me even more leary, as I know it accelerates wear.
Heck, my last chain was ridden three seasons of many motos, an arenacross, several woods ventures, two DirtWeeks, and countless laps in the field, and hadn't stretched past 1%. This was a standard chain on aluminum rear and steel front. Neither of the sprockets show ANY sign of wear whatsoever. And guess what...I didn't flip narry a sprocket. ;)
The key to longevity is not to flip your sprockets when they are worn.
They are worn for a reason....your chain has worn them. The chain is worn out if the teeth are deformed on either front or rear.
Flipping a sprocket around will actually accelerate the wear on the chain, and in turn accelerate the wear on the sprockets.
When a chain grows due to wear, it tends to change where it wants to ride on a sprocket...in other words the roller can't remain in the seat between the teeth so it tends to ride up on the teeth. If your chain has lengthened a bit, it will more than likely wear on the teeth slightly. When you flip the sprocket around you have now introduced the original new pitch back to a chain that is now at a different pitch. This mis-match of pitch WILL accelerate the wear on the chain becasue it has a harder time finding a good pitch center in which to ride. The teeth are now putting an undue strain on the chain reels and they can't distribute the force well.
You must first understand that it is not sprockets that wear out chains, it's chains that wear out sprockets...for the most part. When you flip a sprocket around you have fallen into the relm of sprockets helping to wear out chain.
Also, as in this thread, going to a smaller CS sprocket helps to accelerate wear on the chain, as it is too small for the chain to negotiate without undue stress.
The key to longevity is to keep your chain precisely adjusted, well cleaned, and well lubricated with the proper lubricant. If you do this, and change out your chain when it reaches 1.5% of it's original pitch length, then your sprockets will last and last, and with no need to turn them around.
Besides, there are very few dirt bike rear sprockets that you can turn around without machining a counterbore into the bolt holes.
The guys who go through 2 or three sets a season do not follow good chain and sprocket maintenance, and that is why they fail. It has nothing to do with them not flipping their sprockets. (nothing to do with the brute force of their killer bike either...they often times like to blame that)
Do me a favor and go measure your multi-year old chain properly and let me know how long the pitch is, then we can talk more. Sounds to me like you are risking a bad crash by running worn out chains with such confidence. But wait...I'm not saying you aren't getting that long of life from your equipment...it may well be that you are following great chain maintenance and as a result enjoy much longer life than others do (you'd be in a vast minority though).
Running an 11t front makes me even more leary, as I know it accelerates wear.
Heck, my last chain was ridden three seasons of many motos, an arenacross, several woods ventures, two DirtWeeks, and countless laps in the field, and hadn't stretched past 1%. This was a standard chain on aluminum rear and steel front. Neither of the sprockets show ANY sign of wear whatsoever. And guess what...I didn't flip narry a sprocket. ;)
