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Ask the Mechanic ASK THE MECHANIC

Email our technical experts with any questions you have about cycles. Gear Bikes staff are highly skilled with years of experience in the bike trade. This service is free and we welcome your queries on topics from choosing a model to maintenance or technical issues. We will reply directly to emails as soon as we can and post solutions and frequently asked questions on this page.

Ask the Mechanic

PREVIOUS QUESTIONS

Q: can you recommend a good quality rear mech that does not snap so easily every time i do the least sort of jump, i like trials riding and find that i can bend my drop out hanger very easy, and on two occations in the last two months i have snapped my mech !!
A: of course with "trials riding" goes an element of risk in damaging more of your bike, try using a drop-out hanger from "goldtech", machined thicker so it can withstand more knocks, also try using a short cage rear mech like a shimano "tiagra" or "105", built a lot stronger than most with nice "short style" cage.

Q: is it possible to fit 20mm low profile slicks to my mountain bike(the same width as my road bike ) ??
or what is a good fast road tyre for my mountain bike which i commute on to work.
A: the best we have come across lately has been some new slicks from continental, they are 26 x 1.3 and can reach a psi of around 85 psi.

Q: what should i be cleaning my bike with during this grimey , salty , muddy time ???
 
A: we find the best way at this time of year is to start with some x-lite muc-off treatment, spray on all over bike (if you have disc brakes please remove the pads first) leave muc-off on for a period of around 2 mins, then rinse off with cold water, shake dry then apply some after muc-off treatment, leave for 10 mins then use an old rag to give your bike the final polish. some finish line oil on the chain and your ready to go !!!

Q: i have an old orange p7 with an old style 1" steerer coloum, it has rigid forks just now but i would like to fit a good quality set of suspension forks to it, is this still possible ?? 
A: a lot of fork companys like rock-shox, manitou, etc
no longer produce 1" suspension of any quality but thankfully the people at pace suspension can offer us a choice of 1" or 1" 1/8 steerer coloums when you purchase forks from them.

Q: what can i do with my bent drop out hanger on my gt zaskar ??
A: you can simply replace it at a cost of around £10.
it is not a good idea to try and straigten it as the light metal has now weekened.

Q: can i buy an orange bike through you guys or do i go to orange direct for the best deal ???
john jackson.........shropshire.
A: you would deal directly with the shop here john and if you use our internet payment method you get free delivery !! just give us a ring...

Q: is it possible to use drop bars on my mountain bike ??
A: yes you can, if you are running cantilever brakes then your new drop road brake levers will work fine, if you are running v brakes then a v brake adaptor is required.

Q: I am 5' 10' tall. What size frame would you recommend?
A: General sizing recommendations are just that, recommendations. While we can estimate what size you likely need, the only way to be sure is to get fitted by a dealer. Generally: if you're under 5' 4', you probably need a 12.5 or 14.5-inch frame; from 5' 4' to 5' 8' a 16-inch frame; 5' 8' to 6'0' an 18-inch frame; 5'11' to 6'2' a 19 or 20 inch; 6'2' and over a 20' or 22-inch frame. Your inseam measurement may be long or short for your height and this would have an influence on the size you may need.

Q: what can i do about my bike bar position which i find far too low, the trouble is it has a "a-head" system headset and i know it cannot be adjusted, is there anything i can do ?? mark in surrey...
A: hi mark
thankfully there is a solution, by removing your excisting stem, then fitting in to the top of the fork a new device known as a stem extender you then can fit your original stem back on at a height thats suits you best, you will also have to buy some spacer washers to fit in to the new gap you have created...any bike shop should be able to help, if not give us a ring..

Q: i seem to have damaged my right hand xt shifter on my mountain bike, is it possible to buy just the right hand bit on its own or do i need to fork out for a whole new set ??
A: no problem, shimano can supply you with just the right hand side shifter on its own, call or e.mail the shop for pricing.

Q: I know that putting V Brakes on an older bike involves new levers as well, but what about shifters? I like the Rapidfire shifters, but is there any way to replace them with a similar shifter that isn't attached to the brake lever?
A: Shimano offers the shifter as a separate unit in the XT and XTR systems. This allows you to upgrade to the V-brake lever of your choice while keeping the RapidFire shifting system from Shimano.

Q: I recently purchased an own brand bike from a large retailer in edinburgh, After the first ride I was hearing clicking noises coming from the crank area. I had only put 10-15 miles on this bike before it made these noises. What could be the problem?
A: A loose crank-arm fixing bolt could cause some noise, though typically that is a creaking sound, not a clicking. Clicks tend to come form other areas. Basically, with any noise you have to use the process of elimination. Does it always click in all circumstances (climbing under load, pedalling on flat ground under little or no load, etc)? Does it always click in all gears? Does it click only in a certain position in the pedal stroke and does it click exactly the same back-pedalling? If the answer is yes to the last two, it's probably something as simple as the front derailleur cable hitting the crank. If it clicks only when you're in the big ring, the front derailleur cage might be hitting the crank arm. Other than that some possible sources of annoying clicks could be between the BB collars and the frame (if a shot of WD-40 temporarily stops the noise, pull the cups, clean, grease and reinstall), a loose chainring bolt, or even a cracked cup. Like we said, you'll have to use the process of elimination to find out.



Email Us: Gear Bikes
Tel: 0141 339 1179
Fax: 0141 339 1179

Gear Bikes of Glasgow
19 Gibson Street, Hillhead
Glasgow G12 8NV
UK

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