Rear wheels won't move chain just spins

Being a mechanical problem that we can't see you will need to define it better to us or yourself.

I'm sure if you looked at it closer you would see that the pedal itself is supposed to spin freely while it turns on the crank which turns the chainring which transfers motion through the chain to the gear(s) on the right side of the rear wheel which drive the wheel forward.

Now, where do you think the breakdown really is?

Any search engine would then offer definitions and solutions to a well-crafted query like "bicycle chain slipping" or "bicycle gear slipping".

Chains are intended to move in multiple dimensions while driving the bike or shifting among the gears. YOUR calibrated eyeball can see it while we can't. The Web has lots of advice and resources to well-crafted queries like "front derailleur won't shift" or "rear derailluer won't shift".

"how to (whatever)...." works for many things, too.

Great resource ...

http://www.parktool.com/blog/repair-help

Raise the rear wheel off of the ground. Spin the rear wheel by hand while running the chain over your hand (wear a surgical glove or use a rag). If the chain gets tight and then loose it has stretched and needs to be replaced. If it is an older Honda (70's), unbolt the rear shocks and see if the swing arm moves from side to side. If this is the case you also need new swing arm bushings. Another sign that the swing arm bushings are bad is if the chain is banging against the swing arm while you are driving down the road.

Sounds like your chain is stretched and not fitting the sprocket properly or is just too loose. Check your front and rear chain sprockets for wear and ensure the teeth are straight. Check to insure the chain fits snuggly on the rear sprocket. As a chain stretches over its life, it won't fit in all of the teeth on the rear sprocket. This will cause the chain to ride up on the teeth at higher RPMs and jump (causing the feeling of a jolt or **** as it grabs again). Typically, the chain should have no more than an inch or so of play when properly adjusted.

What??? RLtoFixYa doesn't know what they are talking about. Your problem is a faulty/broke "one way roller clutch" which is threaded onto the rear wheel. I've already replaced 2 on my son's MX500.....

Check that the chain is still on both the drivewheel(the part on the motor) and the freewheel (the part on the wheel). If that is connected well, check if the chain moves when you rev it. If the chain moves but the wheel still doesn't move, the freewheel, or gear connected to the wheel, is probably broken and you need to get a new rear wheel. If it doesn't move, the motor is most likely shot, and you're going to need to order a new motor, unless you are confident in taking apart the motor and replacing whatever needs replacing within it.

try contacting the company. if the car wheels are broke or dangeling you would need new wheels. if the wheels arent the problem it could b the turning starvos

will the pedals move forward? they should cause the chain to move and the crank in the back to cause the wheel to spin, if this isnt happening, look at the chain and make sure its correctly on both sprockets, if the pedals still wont spin, they may be too tight on the crank.

Hi pat,

Yes, there are two chains in the tranny. If the wheels spin freely but don't engage, the smaller chain is broken.

If the wheels don't move, in gear or not, the smaller chain is broken and wrapped around the gears.

It's a bit of a chore to get to....

Mike

This one's a little tricky cause it could be a few things.
I'll try suggestions in the order of probability

• Worn out chain & sprockets.(Or chain too tight or has a tight spot) Check this by raising the rear wheel off the ground,in neutral & spin the back wheel. If the chain & or sprockets are worn you'll feel it & hear it when you spin the wheel. If it has a tight spot,set the chain tension at the tight spot & lubricate well
• Loose engine mounting bolts. If loose re- tighten.
• Worn front sprocket shaft bearing. to check this(if chain seems ok) Remove the chain(note joining link direction of the circlip. The closed end faces the direction of rotation)Bike in neutral, turn the sprocket shaft by hand. It should turn smoothly.If it is notchy thats not good. It is a major job to change & can be expensive(So i hope its the chain &/or sprockets)
• Broken tooth on a gear in the gearbox. I hope not as again a more difficult & expensive repair.

Hope this helps you narrow down your problem
Regards Andrew Porrelli