Some freehubs (the part of the rear hub that ratchets) are repairable/rebuildable, but most are not. The ones that are, are usually the more expensive ones and my guess is that your is not. You can usually replace the freehub as a unit. If it's a Shimano freehub, there is a decent chance that some better stocked bike shops may have them in stock. If not, they'll have to order it for you.

 

here is the spec of bike, looks like it has a joy-tech 36h hub

Specialized Bicycle Components : P.2

 

Don't worry about the clicking sound. It is not necessarily an indicator of wear. More importantly, does it skip at all while riding. You may be able to replace the pawls and springs inside.

 

Maybe someone can chime in but I don't think you can get replacement bodies for joy-tech hubs. They're unfortunately junk hubs and I'm not sure how much you can fix in there. Is there a more accurate description of what the issue is than "it's clicking"? Depending on the kind of clicking it could be no issue or it could be imploding.

 

if the hub is the kind of Joytech hub I am thinking of, yikes. I have tossed out a lot of wheels because those Joytech freehubs crap out and never work again, and I have never found replacement freehubs for them. they don't play with Shimano freehubs. if it's skipping or not engaging at all, it might be worth removing the freehub and bringing it to a bike shop to look for a replacement. or just have them look for one for you.

 

thanks for chiming in, i think they are the cheap hubs , the wheels are sun ditch witch, i read reviews here there are not that good neither .

from the few mins i rode the bike before i bought it, the freehub engages fine, i know the clicking sound is not a big deal, there is some play when i grab the casstte and try to move it. maybe i should just get a new wheelset.

 

thanks for chiming in, i think they are the cheap hubs , the wheels are sun ditch witch, i read reviews here there are not that good neither .

from the few mins i rode the bike before i bought it, the freehub engages fine, i know the clicking sound is not a big deal, there is some play when i grab the casstte and try to move it. maybe i should just get a new wheelset.

You'll have to excuse my ignorance on this hub, I haven't seen one in ages; but you could try and tighten the freehub body back onto the hub. Sometimes excessive play when you move the cassette side to side (as opposed to the direction it freewheels/engages when pedaling, tough description sorry) by tightening the freehub body. Shimano hubs will be able to do this by removing the axle from the hub and using a 12mm allen wrench to tighten the body. This could be a good learning experience for you but it wouldn't hurt to watch some videos or read some information about it first online. You'll need cone wrenches and you'll need to understand how to adjust tension on hub bearings to get this done by yourself.

If the play you're talking about is in the direction of engagement then you're fine; (almost) every hub has space between pawls so there is a dead spot in the pedal stroke where you need to pedal a few degrees to get the pawl to engage so you can pedal.

 

i will def try that when the chain wrech and cassette socket comes in , the play im talking about is side to side.

unfortunately, i dont have any cone wrenches at the moment, working on bike is just not my priority now. but i have done a rear hub bearings replacement on my bmx,i know its differnt from montain bike, its still kinda tricky when tighten the nut on the bearing and the lock nut next to it together, i had to hold the axle and bearing nut still while tightening the lock nut.

ive been watching a lot of videos and stuffs, the thing is on the interent you dont know if something is correct or not for noob like me. do you mind post a couple of links to video and article?

thanks

 

i will def try that when the chain wrech and cassette socket comes in , the play im talking about is side to side.

unfortunately, i dont have any cone wrenches at the moment, working on bike is just not my priority now. but i have done a rear hub bearings replacement on my bmx,i know its differnt from montain bike, its still kinda tricky when tighten the nut on the bearing and the lock nut next to it together, i had to hold the axle and bearing nut still while tightening the lock nut.

ive been watching a lot of videos and stuffs, the thing is on the interent you dont know if something is correct or not for noob like me. do you mind post a couple of links to video and article?

thanks

It sounds like it's basically the same process as your BMX hubs but if you don't have cone wrenches then you might not be able to get at the flats on the cones of the hub. I would say to take it into the shop, it should cost around $15 or $20 (as a guess) and will be your best bet until you're ready to make the expenditure for the tools.

 

oh, i have 2 box filled with tools for cars, i just didnt wanna spend any more money on tools.

last time i just used a low pro plier to hold it in place while tightening the lock nut. if its not gonna work out i will have to buy a set cone wreches