On a mountain bike crank, can the back chainrings be removed so that only the top one is there?

Question

I'm thinking about building a 1x9 mountain bike from Nashbar and don't know if it will work.

Answer 1

You can remove the smaller 22 tooth ring, but I do not think you can leave the 32 tooth ring off because hardware used to affix it to the crank spider is designed for 2 rings. You could put a bash guard on the outside and leave the front derailleur off. tf

Answer 2

Yes, you can remove the 2 inner chainrings if you want to. You will need some shorter chainring bolts however.

If you are going to do this, I would recommend removing the 2 outer chainrings and leaving the middle chainring. This will create better chain lines and make your cassette and chain last longer.

Answer 3

To provider cranks you desire a pair of particular kit. What needs to be finished relies upon on the place the play is. If the crank palms are tight on the backside bracket spindle, the play is in the backside bracket, it may could desire to get replaced. If the spindle has no play and the palms are transferring the place they hook up with the spindle, the palms could be worn and could desire to get replaced. In the two case, you desire a crank arm extractor, and a device for removing the backside bracket cups. There are numerous varieties of the two kit, with a view to purchase them you are able to desire to comprehend what make and variety of crank and backside bracket you have. general hand kit won't get the interest finished.

Answer 4

Yep... you can remove any chainrings you want, as long as you make sure you have the right chainlenght.

Usually, most people remove the smallest one, and the largest.