Laurence--Trials Posted November 4, 2011 Report Share Posted November 4, 2011 As title says, how do i get my rear sprocket off, was unbuilding my wheel and realised i've got to take the sprocket off to get the drive side spokes out and the new ones in. Half the spokes arn't in there and all of them are very loose, how do i get it off? Quote Link to comment Share on other sites More sharing options...
forteh Posted November 4, 2011 Report Share Posted November 4, 2011 As title says, how do i get my rear sprocket off, was unbuilding my wheel and realised i've got to take the sprocket off to get the drive side spokes out and the new ones in. Half the spokes arn't in there and all of them are very loose, how do i get it off? Put the spokes back in Quote Link to comment Share on other sites More sharing options...
Laurence--Trials Posted November 4, 2011 Author Report Share Posted November 4, 2011 thats the only way? seriously? Quote Link to comment Share on other sites More sharing options...
forteh Posted November 4, 2011 Report Share Posted November 4, 2011 (edited) thats the only way? seriously? Pretty much, if you have one side of the wheel laced up already you might be able to get enough tension on those spokes in order to resist the torque required to remove the sprocket. Failing that, put some of them back in the unlaced side and you should be able to remove the sprocket as normal. edit: it should only take you 20 minutes or so to put the spokes back in, the wheel doesn't need to be trued, just tensioned a little; besides which its good practise for lacing Edited November 4, 2011 by forteh Quote Link to comment Share on other sites More sharing options...
Laurence--Trials Posted November 4, 2011 Author Report Share Posted November 4, 2011 I dont know how to build a wheel though, i was unbuilding it ready for my friend to rebuild it. f**k me never thought it'd be this hard. Quote Link to comment Share on other sites More sharing options...
skunky_bifta Posted November 4, 2011 Report Share Posted November 4, 2011 I dont know how to build a wheel though, i was unbuilding it ready for my friend to rebuild it. f**k me never thought it'd be this hard. Apparently there's some good tutorial videos on youtube that can teach you how to build/tru a wheel. Quote Link to comment Share on other sites More sharing options...
JD™ Posted November 4, 2011 Report Share Posted November 4, 2011 Google Sheldon Brown for all the wheelbuilding expertise you'll ever need - it's not hard when you follow the instructions I'm hoping I got that name right, for some reason I think I might be referring to the guy of the Big Bang Theory... Quote Link to comment Share on other sites More sharing options...
forteh Posted November 4, 2011 Report Share Posted November 4, 2011 Google Sheldon Brown for all the wheelbuilding expertise you'll ever need - it's not hard when you follow the instructions I'm hoping I got that name right, for some reason I think I might be referring to the guy of the Big Bang Theory... That's Sheldon Cooper Quote Link to comment Share on other sites More sharing options...
JD™ Posted November 4, 2011 Report Share Posted November 4, 2011 That's Sheldon Cooper Glad I got it the right way round then Quote Link to comment Share on other sites More sharing options...
Laurence--Trials Posted November 4, 2011 Author Report Share Posted November 4, 2011 So i just got alex trials boy (forum name) round to help get it off, used the same techneque as adam in his tarty video. Couldn't be bothered to tighten up the spokes... and guess what happened Yep... We snapped the 1300kg load chain Quote Link to comment Share on other sites More sharing options...
skunky_bifta Posted November 4, 2011 Report Share Posted November 4, 2011 So i just got alex trials boy (forum name) round to help get it off, used the same techneque as adam in his tarty video. Couldn't be bothered to tighten up the spokes... and guess what happened Yep... We snapped the 1300kg load chain Yeah i had a mate with a TI sprocket and he tried getting it off using the tarty video and it completely destroyed his sprocket??? Dam things... Quote Link to comment Share on other sites More sharing options...
Mark W Posted November 4, 2011 Report Share Posted November 4, 2011 It shouldn't have been able to mess the sprocket up if it's done properly... Quote Link to comment Share on other sites More sharing options...
Laurence--Trials Posted November 4, 2011 Author Report Share Posted November 4, 2011 It didn't mess the sprocket up, the sprocket is fine, its the chain that took the damage. Quote Link to comment Share on other sites More sharing options...
Dave Anscombe Posted November 5, 2011 Report Share Posted November 5, 2011 i take them off with angle grinders .....cant be f**ked with pissing around with chain tools ect ect 2 Quote Link to comment Share on other sites More sharing options...
Laurence--Trials Posted November 5, 2011 Author Report Share Posted November 5, 2011 I would but i didn't really want to be buying a new one. If i have to i have to but we'll see what alex-trials-boy and kenny--trials can do with it. Quote Link to comment Share on other sites More sharing options...
Carlperkins Posted November 5, 2011 Report Share Posted November 5, 2011 cover the b*****d in wd40 before you do it? assuming you have some chain left and a vice?? Quote Link to comment Share on other sites More sharing options...
Laurence--Trials Posted November 5, 2011 Author Report Share Posted November 5, 2011 Update: its snapped 4 chains, 1 chain whip, a 3m pole cant undo it. Im pretty worried now as i've given alex and kenny pomition to use an angle grinder on it Quote Link to comment Share on other sites More sharing options...
Ali C Posted November 5, 2011 Report Share Posted November 5, 2011 try this way..... wrap the chain around the sprocket as normal, but make the chain miss one tooth out (make the chain make a small triangle shape). Put the cog with chain in a vice and now when you turn the wheel the kink in the chain will not allow it to spin and not waste the clamping force of the vice. You'll probably need two people to turn the wheel, having the tyre inflated will help loads too. When working at Tartybikes this system never failed. Quote Link to comment Share on other sites More sharing options...
Laurence--Trials Posted November 5, 2011 Author Report Share Posted November 5, 2011 Bit too late now... sprocket is a square with no teeth, alex is going to rebuild the wheel then with ALL the spokes tight and in place try to undo the wheel like that, will use the tube/tyre with it too!! Quote Link to comment Share on other sites More sharing options...
Mark W Posted November 5, 2011 Report Share Posted November 5, 2011 Tyre + tube = big difference in how easy it is to take off. Quote Link to comment Share on other sites More sharing options...
Carlperkins Posted November 5, 2011 Report Share Posted November 5, 2011 Bit too late now... sprocket is a square with no teeth, alex is going to rebuild the wheel then with ALL the spokes tight and in place try to undo the wheel like that, will use the tube/tyre with it too!! mate, if you still have the hub with sprocket on, (wheel not built) I can probably cut it off with my tools for you a bit better. i have a sneaky suspicion an angle grinder isnt the best way to get it off.. lol Quote Link to comment Share on other sites More sharing options...
Mark W Posted November 5, 2011 Report Share Posted November 5, 2011 cant be f**ked with pissing around with chain tools ect ect Assuming you've ever bought a chain and cut it to length to fit your bike, you'll have an off-cut big enough to do this, so the only "tool" you need is a vice. Shitload easier and cheaper than anglegrinding a sprocket off. Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted November 5, 2011 Report Share Posted November 5, 2011 "Tool" being the optimum word in that sentence... 2 Quote Link to comment Share on other sites More sharing options...
Laurence--Trials Posted November 6, 2011 Author Report Share Posted November 6, 2011 I really dont know how to do this anymore. wheel has been built onto the new rim so i can give it some propper tugging without worrying about the spokes snapping. However if i put the sprocket in the vice and pull it, it'll just slip round. I'll probally have to grind the f**king thing into a grip-able shape but is there any way to make it easyer, i was pulling it with the tyre/tube on. Quote Link to comment Share on other sites More sharing options...
Laurence--Trials Posted November 6, 2011 Author Report Share Posted November 6, 2011 Just watched the tartybikes video guide again and he spins it "anti clockwise" Surly that'd mean its being loosened as you ride? Which cant be right??? Is it anti clockwise with ALL sprockets? Quote Link to comment Share on other sites More sharing options...
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