When do you need to apply external chain tighteners?
It is hard to define. The internal chain tightener pads can keep the chains tighten under a certain load on the chains. In case the load is higher, the chains will get losen too frequently.
What circumstances make it a good decision to apply the external chain tigheteners?
- Rider weight above 75-80 kg
- Rough, bumpy surface
- Hilly roads
- Strong strike out startings
Can the external chain tighteners be mounted later on?
Yes. It can be mounted on later as well. Here is a little tutorial on how to apply them:
- Take off one of the main bolts (you can do it one after the other, no need to take off both bolts at once).
- Insert the 6mm screws into the holes on the alloy part and fit the ringbolt on the axle. WARNING: the ring is not closed, there is a little gap on it. The gap should be on the left side (the hook should turn clockwise).
- Tighten the screws and put on the main bolt but do not tighten it yet.
- After installing both tighteners, tighten the chains by tightening the bolt on top. Tighten it a little less than you’d think it would be enough; when you tighten the main bolts, it will give it a very little extra tightness. You don’t need to tighten the main bolts as much as before; just tighten it “normally”, not to loose them.
