HELP! I have a large Giant road bike and i want to put a new cable on my front gear. After finding out that i shouldn't have unscrewed anything on the gear lever as i should have been able to simply insert new cable through a hole. i've already managed to damage a little pin which moves the gear indicator after unscrewing it. I've now inserted new cable through this hole and tightened it into it's allocated screw. My gear doesn't move one little bit - there doesn't seem to be any resistance whatsoever. It's doing my head in and i just don't want to pay a massive sum for someone else to do it. I can't be that hard can it? I have a
Re: HELP! i want to put a new cable on my front gear.
I'm not quite sure where you are at with this one but did you make sure that the front deralier was on the largest cog when you pulled the cable tight?If you pulled the cable tight when the deralier was on the small ring then the cable can't be pulled any tighter as you try shift up therefore it will be stuck at the small ring. It's kinda to describe in words.
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It depends on how mechanical of a person you are. In simplest terms we'd unscrew the old one and put in the new one. Calibrate and then ride. Without model number or any other specifics we can only give you a general response.
For my bike, I'd change gears to the smallest gear first. Then I'd locate the screw holding the whole thing in place along the underside... unscrew. Then unhook the shift cable from the shifter. Then unthread that cable through the bike frame until I get to the derailleur. Remove / loosen the screw that holds it in place. Put the new shifter in place. Hook the cable back in. Change shifter to position of the current gear and thread the cable back through the bike to the derailleur. Slip cable back into place and tighten. Calibrate and ride...
Do you have a neighbour who hates you? I do ride bikes for 60 years now, and never had two punctures in a row within half a year. Actually last 10 years only one puncture in one of my tires, and from the place I could deduce someone had pressed something sharp from the side into the tire. So nothing from the oad.
And the newer tires, are almost not to puncture when driving on a road. It must be someone punching in these holes. Because if some sharp thing pointing up on your road your front tire would have been punctured at least once or twice too.
the clutch may be stuck on. Put the bike in neutral, start the bike, run down the road looking like a fool jumping on and off the bike to kick it into 2nd gear and pumping clutch lever. Clutch should be free.
It might also be worth checking if your pushrod has a ball bearing in the end, I had one on mine, replace the clutch plates and it wouldn't work with the ball bearing in :)
When was the last time you replaced your cables? If you have checked that every other part of the drive train is free from obstruction (eg. move the front deralieur with your fingers) then I would strongly suggest looking at your cabling. Once new cable are fitted then you can adjust the limit screws on you deraileurs to get your gear shifting nice and smooth. YouTube is full of useful videos. Good luck!
The derailleur has to be properly aligned to the chainwheels, then adjusted properly. A new cable must be installed correctly so that there is not excess friction, and then given the right tension. If that is done then the problem may be the shifter. If when you shift from the large chainwheel a single click sends it to the smallest then the shifter is possibly broken. You can try squirting wd-40 or similar into it to see if it's gummed up.
Many possibilities, including derailleur outer limit not correctly adjusted, derailleur not mounted correctly, tight bend or friction in cable. Talk to the store manager/owner about correcting your complaints or find another shop or a bike co-op. If the bike is a major brand from a bike shop (Trek, Giant, Cannondale, etc.) try going to their website, look for Customer Service/Support and enter a complaint.
If the bike is still under warranty, I'd take it to a dealer to begin with. But, if I had to take a guess, I'd say that the starter was trying to turn over before the starter gear on the jackshaft is properly engaged with the ring gear on the outer clutch basket. What would cause this? I'd look at the contacts in the starter solenoid and make sure they were straight.
From the right hand side of the bike look for a plate on the end of the starter that is shaped roughly like a pentagon (five sided). The plate is held on by three small screws. Remove the screws and the plate. Behind the plate you'll find a plunger and a spring. Remove the plunger and the spring. Look inside and on either side of the solenoid body on the inside, you'll see two large copper contacts. Are they straight across or are they kind of twisted? Sometimes when the large cables are attached to these contacts, the nut is tightened too tightly and the contacts get twisted. This makes the contact on the plunger make contact with these contacts before the plunger is all the way in it's inwards position. The starter motor begins to spin before the starter gear is completely engaged with the ring gear on the clutch outer shell. The gear makes a loud clank as it engages with the clutch gear.
To straigten them, disconnect the negative battery cable at the battery. Loosen the nut on large cable connections on BOTH sides of the solenoid. Remove the long spring from the plunger. Put the plunger back into the solenoid and push it all the way in. While holding the plunger in, tighten the connections where the large cables connect. Remove the plunger replace the sping, put the plunger back in the solenoid. Put the plate back on and reconnect the negative cable at the battery. Hopefully this will help.
Set the rear derailleur to the lowest gear (big cog) and the front to the lowest gear (small chain ring). Disconnect the derailleur cable. Screw in the adjuster for the cable tension all the way (this adjuster is on the shifter of a mountain bike or the down tube of a road bike). Pedal to make sure the chain is not rubbing on the derailleur cage. If it is, adjust the "L" setting on the derailleur until the chain moves by without touching the cage. Now pull taut and reattch the cable and shift the front to the big ring while pedaling. If it does not shift up well or completely, hold the shifter past its normal shift and adjust the "H" screw so that the derailleur allows the shift. Shift into the highest cassette gear and keep pedaling. The chain should not be touching the front derailleur's cage when you pedal. Adjust with the barrel adjuster until the chain moves freely without touching the derailleur cage.
A bicycle shop which sells Giant can usually give you a manual. Bike manuals tend to be very generic as to what information is in them. If you have a specific problem, with the shifting or brakes for example. Post it.