Mountain Cycling - Page 5 - Recent Questions, Troubleshooting & Support

You need to use the same one or one that is compatible with the gears in the back. I.e. a Shimano shifter will move your derailer a slightly different distance than a SRAM or campi shifter. You should talk to you local bike shop for more advice

Missing? Like fell off - or was never there? Do some search engine stuff and find out what that part is called. Maybe 'crank''? Then ask someone at a Local Bike Shop to fix you up. No one sells just one crank.

Vist the Raleigh (note the spelling) website amd download the Single Speed Manual. Page 13.

http://www.raleighusa.com/downloads/owners-manuals/

You could also use any Search Engine and enter "adjusting brakes on bmx bike" for video instructions.

He's probably right.

Clearly the cassette/freehub isn't 'freewheeling'. Get it lubed at a Bike Shop unless you want to buy all the special tools, come up to speed knowledge-wise and DIY.

http://www.5min.com/Video/How-to-Overhaul-a-Shimano-Hub-and-Free-hub-66770627

It may actually be cheaper to buy a whole new wheel.

I imagine there are other maintenance issues with the bike.

Search engines will find answers and instructions.

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

http://techdocs.shimano.com/techdocs/index.jsp

Pick just about any rear derailleur for instructions.

Good advcie on adjustments...
http://www.parktool.com/blog/repair-help/categories/derailleur-systems

Search engines find these answers MUCH faster than posting them to us (with videos)...

http://www.youtube.com/watch?v=Bk-VUZKeYuA

You don't give any specs for your particular crank but if you Google it you will probably find an entire crankset for less than a shop would charge you to chicken wire yours, if indeed they would even consider it. Left-hand thread complicates it.

For example...

http://www.downtube.com/product515.html

Or look on eBay.

http://techdocs.shimano.com/techdocs/index.jsp


http://www.parktool.com/blog/repair-help/categories/derailleur-systems

Some guidance...

http://www.parktool.com/blog/repair-help/hub-overhaul-and-adjustment

• If your brakes are squealing a bit then you need to toe the the pads in a bit. Basically the trailing end of the pad needs to touch the rim when barely when light pressure is applied. You want your pads to be adjusted like an inverted V or sorts. Like this ^ . You need to adjust and re tighten the brake pad holder. Re-adjust the pads and they will be tight but will not squeal.

Regards, Tony

HERE is Shimano's exploded-view diagram of the shifters, but it really only gives you a ballpark idea of the assembly. You will have to piece the rest together from memory, i suppose. Sorry, i could not find more information for you.

Hope this helps a little,
matt

Try www.chainreactioncycles.com they do ship worldwide.

Check your cable tension, and your limit screw settings. If that doesn't fix the problem, take into your local bike shop, they will be able to diagnose and provide a solution.

Look around here.

http://techdocs.shimano.com/techdocs/blevel.jsp

Mountain Shimano Tourney Shifters

Neither screw is for mis-shifts. Those are limit screws for the largest and smallest cogs. Tweaking the cable tension will usually bring in the indexing...

http://www.parktool.com/blog/repair-help/rear-derailler-adjustments-derailleur

It sounds like your cable is/was a smidge too tight.

http://techdocs.shimano.com/techdocs/blevel.jsp

http://techdocs.shimano.com/media/techdocs/content/cycle/EV/bikecomponents/SG/EV-SG-4C35-1855A_v1_m56577569830728384.pdf

http://techdocs.shimano.com/media/techdocs/content/cycle/SI/Nexus/InternalHub/SG_4C35/SI-4C35B-En_v1_m56577569830613004.pdf

They just might be, depending on the brand and pedigree of the crankset. Lower-end bikes usually have rivetted, stamped or even single-piece cranksets, so they're not designed to be replaced individually.

Check the limit screws. It is likely that the limit screw is adjusted to keep the movement limited to the first two chainrings. If that is not the problem, alignment or damage may be the source.