need some help

[marc]

hey i have alittle prob. that i need help with. once in awhile when peddeling and stop my rear cassette wants to keep turning what should i do about this?

 

[5-7HEAVEN]

I would take it to my local bike shop.

 

[motorpsycho]

sounds like maybe the bearings in the hub are way too tight.

 

[marc]

the wheel spins freely. and i will check the bearings for grease.does the cassett have seprate bearings? it kinda seems like it would.what do you think motorpsycho

 

[motorpsycho]

there should only be an outer set of bearings on each side of the hub. there should be a set of bearings on the outer sprocket (cassette) side and an identical set on the other side under a dust cap.
there are also little bearings inside of the cassette itself i beleive, but they are very hard to get to. I have never taken a cassette apart myself and it requires a special tool to get the cassette off of the rim (if you are referring to a standard 10 speed multi-cog cassette).
I'm no expert in this area that's for sure, but it sounds like something is bound up inside of hub or the cassette. but you say that the wheel spins freely.....hmmmm.
so when you stop peddling (holding the cranks still with your feet), the rear cassette wants to keep turning, allowing the chain to bunch up? is that right?

 

[Al.Fisherman]

Special tools to remove the cassette.

http://www.ebay.com/itm/Bicycle-Too...126?pt=LH_DefaultDomain_0&hash=item483ec6e3b6

http://www.ebay.com/itm/Bike-Bicycl...366?pt=LH_DefaultDomain_0&hash=item3f0396ba36

Those are just 2 of many on this page, you need the correct tool depending on the brand of cassette you have. The sprocket lock handle is standard.

Nice to have around and I'm sure cheaper then going to a bicycle shop. As far as getting into the cassette, I'm sure you can find that online. Work over something (I like a old sheet) as the bearings are not caged bearings, and no telling where they will go when they hit the work bench or floor. Bicycle shops sell the bearings individually should you loose any. Getting into a cassette is straight forward http://bicycletutor.com/replace-cassette-cluster/ ... I learned it from my son.

One nice tool I made is a cone wrench. The ones I see in the local stores are cheap and WILL break. I took a old (I think I needed a 15mm wrench) and cut the thickness on both sides so it will fit.
https://www.google.com/#q=cone+wren...w.,cf.osb&fp=feba58f230aaabed&biw=992&bih=575

 

[marc]

ya once in awhile it will kinda try and lock up but then it frees itself because of the tension from the chain by the way its a 7 cog sprocket on a trek 820

 

[Al.Fisherman]

ya once in awhile it will kinda try and lock up but then it frees itself because of the tension from the chain by the way its a 7 cog sprocket on a trek 820

Does it do it on all sprockets, on just one?

 

[marc]

i dont know? i put the motor on and i havent shifted it sense. I will see wats up with that in the morning. I never thought about shifting. boy i feel kinda stupid now. see what a motor will do,make a guy not think rite