How to Replace the Sprocket & Chain on a Street Bike : Set the Tension on the Chain

How to Replace the Sprocket & Chain on a Street Bike : Set the Tension on the Chain


Hello my name is Mario. I’m here with Expert
Village and I’m going to show you how to change a chain and sprocket on a sports bike. Now
that we have the chain on the axle’s inserted, the brakes are on, the bolts on, and we’re
ready to set the tension of the chain. Why don’t you come over here with me and I’ll
show you how to do that. Here we are ready to tighten the axle, you want to take an adjustable
crescent wrench and you don’t want to tighten it to much so that when you’re ready to tighten
the tension your axle can still move in and out, so just un-tighten it a little bit. Now
I want to loosen it so that I can show you that when you’re using these chain tensioners
right here you can set the distance. Now keep in mind those grooves right here, you want
to make sure they are set to the exact same on both sides or else your wheel would be
crooked and your chain could fall off while you’re driving. We set this one to I believe
7 on this side and 7 on the other side, no come around with me just like the other side
we’ve set to 7 we set this one to 7. This is about just where you want your chain to
be you don’t want it much tighter or looser than that, this is a good tension right there.
So what you want to do is take this with a 10 millimeter and tighten it right up against
the spacer and then tighten this one back against the swing arm. Tighten those down
good and tight and then go and do the same to the other side. Just like so. Once you
get both sides tight you can go ahead and tighten your axle bolt, get it good snug on
there so that it doesn’t wiggle off then line it up with the hole on the bolt so that you
can put the clip back in and secure the clip. Alright now that we have the chain set to
where we want it. We want to go ahead and tighten this axle bolt, take an adjustable
crescent wrench, turn it to the right.
You want to get a good tight fit on there and make sure you line it up with your holes
so you can get the clip back in. Once we have it where we want, go ahead and take your pin,
just hammer it. Bend both sides so that the bolt doesn’t spin. Your set to go.