Hi, my chain on a 2016 Specialized fatboy keeps getting sucked into the tire and comes off when I am in the top gear coasting. I have had multiple bike shops look at it and they say that those bike are not made to be in the top gear which sound ridiculous to me. It also been suggested that I change the front sprocket from a 28 to a 32. Also the chain measured fine. Any suggestions?
please tell me what you mean by top gear. do you mean the big cog in the rear or small cog in the rear? What is your drive train? i.e. 1x10 2x10?
also, what is your tire width? Is your chain getting sucked in up front being pulled off of your chainring?
Your Bottom bracket spindle is set and cannot be changed. chainring swap probably would not make a difference on the chain suck. swapping tires closer to 4 in. would get the chain away from the tire, not the cheapest but that is the name of the fat tire game.
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
can you post a picture of the chain in top gear and give the dim. of the chain to tire on top and bottom of chainring in front. and a side shot of the rear derailleur on the small cog and on the large cog, so I can see how the chain is fitted. Has this been going on since new? or something starting to happen after you have put some miles on the bike?
It does not seem to make sense that the tire is grabbing the chain in the gear furthest away from the chain if not doing it in the other gears also.
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
see what they say. from what you say, I would probably check the rear derailleur alignment, replace the chain and cut it towards the short side.
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
Interesting. On your dime or the shops dime? Thanks for the update
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
Thanks for the update glad its fixed.So the tire was never part of the problem to begin with? I was under the impression you physically could see it hitting the tire. Some problems are hard to judge in a forum without having the bike in hand. The important thing people can learn from this is to not give up when you know something is not right. Sad but you have to keep pushing sometimes to get satisfaction.
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"