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1

The thing I tend to start with with derailleurs is (same applies for front and back): Make sure gear changers are set so that you'd be in the smallest gear (e.g. smallest ring on freewheel / smallest ring on front mech - i.e. least tension on gear cable. It looks like that's the case from your photos - front mech is on 1 and rear mech is on 7. Undo screw ...


2

You need to read about derailleur adjustments. The first thing to do is check that the rear derailleur is not bent. If it is, you need to unbend it. Once that has been determined, you can read up on rear derailleur adjustments and front derailleur adjustments. I'm including cable tension as a derailleur adjustment. Other problems may be cable friction ...


1

Most setups are supposed to have at least some sound when switching gears. Depending on your derailleur/setup the sound may vary from a short click to longer sound of chain grabbing around the gears. The switching is supposed to happen without pedaling backwards, so you should not do it. Normally it is not okay to switch gears with highly tensioned chain, ...


3

Since you have vertical dropouts, you'll need some sort of chain tensioner. You can buy one, or you can use the existing rear derailleur. You'll have to rig it up somehow so it stays in the same position (that is, so it's always lined up with the sprocket). I strongly suggest reading Sheldon Brown's article on single-speed conversions.


3

NO The derailleur holds chain tension. At a minimum your would need a chain tensioner. And it would need to line up with A gear. Single speed and fixie have horizontal dropout to adjust tension.


0

If you were able to shift into all of the gears prior to your adjustments then it would make sense that you need to readjust. It sound like you you have adjusted it too far outboard. I would take it in significantly so that when in 1st gear position on the shifter you are on the largest cog. From there you can make fine adjustments for shifting between ...


1

In order to restore it, take off/disassemble the major/large parts: Fork, wheels, and cranks. Go slow here so you can put it all back together later. Give it a good degrease, wash, wax then reassemble with new grease. You don't really have to remove and tear down the hand brakes. Grease the seat post. Park tools has a good page on how those coaster ...


0

I see here one question: how to fix rear hub with coaster brake. Is there any more questions you have about restoring this bike? About fixing coaster brake, it's best to give it to LBS, as it's a bit complicated thing.


1

Here's how I optimized my Townie for max speed, yet max slow climbing ease. (I'm an old man.) In MTB style, I replaced the chainwheel/crank with a 22t/48t combo (the max spread that 4-bold 2x setups can take these days.) Then with 2 cassettes combined (cogs & spacers from the 8sp CS-HG51 11-30t and the 9sp CS916A HG-400 12-36t) with a Wolf Tooth 42t ...


0

Normally there would be a fairly strong spring that would be pushing the front derailleur towards the smallest chainring (easier gear). You mentioned that you have already attempted to set the limit screw that determines how far the front derailleur can move towards the smallest chainring. If you have done this correctly, and it still doesn't move far ...


0

I agree with Chris Leon, if the shifting mechanism is functioning properly, this is just a cable tension issue. You can adjust the derailleur cable yourself or if it's a new bike the shop will generally do free adjustment at 30 days. I have often overtightened my front derailleur cable and had to back it off. It's actually a pretty good project to work on if ...


3

Crack open the shifter. There are four screws holding it together. Be careful to not displace the springs. If you do move the main one, it is meant to be attached over the cable router and within a small hole in the white plastic near the centre. As for correcting your perceived problem. In general there is a white strip with sprockets. Move the white ...


0

I have had precisely this happen luckily I had an aftermarket alu derailleur bolt fitted which snapped saving damage to my frame but the mech, chain and the wheel were right offs ! It's an expensive lesson to learn so don't do it ! To add to my answer I wasn't shifting under load just the opposite in fact it was definitely a simultaneous shift down at the ...



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