18 votes

Converting 3x7 to a 1x7. Is it possible with only existing parts?

You have a zero cost solution, which is to keep the front derailleur but remove the cable (and shifter if you like). Then use the FD limit screws to fix it in the right position to act as a chain ...
Chris H's user avatar
  • 58.9k
18 votes
Accepted

Whatever happened to the 4 x n derailleur drivetrains?

I had a MTB that had a quad chainring. The bike was a Raleigh Delmara and it was equipped with a friction shifter. Photo is dated 2017, but it was ancient at that time, probably late 90's steel MTB ...
Criggie's user avatar
  • 124k
15 votes
Accepted

Can a broken/split chain be reassembled?

Fifteen years ago the answer was a simple "Yes". Today's 10, 11, and 12 speed chains are not designed to be reassembled this way, and in fact, will reliably break or fail where you reuse the rivet. ...
Adam Rice's user avatar
  • 30k
15 votes
Accepted

How to repeat the success of Salsa Marakesh when mixing MTB and road components?

I sell that bike at work. The road/mountain FD mismatch functions very badly. We've had to replace the front derailleurs with road models. The total throw of a road shifter isn't enough for it to ...
Nathan Knutson's user avatar
12 votes

Shifting direction is different for front and rear shifters

The reason why shifting is arranged this way: Shifting to a larger chainring at the front gives a higher gear ratio, shifting to a larger sprocket at the rear gives a lower gear ratio. Shifting to ...
Argenti Apparatus's user avatar
12 votes

Which limit screw is which?

Quite often it’s possible to see the tip of the screw and if it’s making contact. The one which is making contact (or almost making contact) is the one which is relevant for the current shift position....
Michael's user avatar
  • 27.4k
12 votes
Accepted

Cannot figure out how to stop outer edge of front derailleur hitting chain

There are two main factors that decide how much the front derailleur moves Limit screws Cable tension The resulting derailleur movement may be limited by either of them, so you have to get both ...
DoNuT's user avatar
  • 4,441
11 votes

105 R7000 front derailleur with 105 5800 crankset

Shimano lists the FD-R7000 front derailleur as compatible with the FC-5800 crankset in their products compatibility information, but the R7000 crankset wont be compatible with the old derailleur.
airace3's user avatar
  • 2,360
11 votes
Accepted

2-speed front derailleur - three possible positions?

That's the high "trim" position. Most Shimano front road derailleurs have four positions: low, low trim, high, and high trim. If your derailleur is properly adjusted, after you shift the ...
Andrew Henle's user avatar
  • 10.6k
10 votes

Shifting direction is different for front and rear shifters

This is the way most (99.999%) of bikes work. If you really want to change it - I advise against such a move, the only option would be hunt out a (fortunately) now defunct "Rapid Rise" or &...
mattnz's user avatar
  • 50.5k
10 votes

Whatever happened to the 4 x n derailleur drivetrains?

Here's a review of a 4× adapter (which apparently you can still buy). I also know that there's a specialty tandem drivetrain, Davinci, that uses an interesting 4× setup. I've never heard of any of the ...
Adam Rice's user avatar
  • 30k
9 votes

Converting 3x7 to a 1x7. Is it possible with only existing parts?

If the chainrings are in good order, I would recommend servicing the front derailleur and continue to run it as 3x. The reason is that front dérailleurs rust quickly but are often chrome plated and ...
Superman.Lopez's user avatar
9 votes

Will my mix-and-match drivetrain work?

Don't put a 9-speed chain through a 6/7-speed front derailleur like that. It will work badly because the cage inner gap will be spaced to expect a wider chain. Random internet advice loves to get this ...
Nathan Knutson's user avatar
8 votes
Accepted

How can I fit a bigger rear tyre when limited by the front derailleur?

Put a larger tire on the front and don't worry about running a larger tire on the rear. Back when North Shore BC riding was just starting to take off (i.e., 1990s) we often did this setup as we were ...
Rider_X's user avatar
  • 30.6k
8 votes
Accepted

Shimano 105 front derailleur has some “extra shift” after shifting to small cog

Ben, congratulations on your new bike! Yes the behavior is normal. The large cog should have a similar setting, i.e. if you don't shift all the way to the small ring, but just click gently, it should ...
NoirDesir's user avatar
  • 198
8 votes

Front deraileur not shifting to lowest gear. (New bike)

Yes you can, no you should not. Since it is a new bike assembled by the shop, I strongly recommend you let them fix it. And it must be for free (more correct: you already paid for it, they did not ...
EarlGrey's user avatar
  • 3,583
8 votes

Front derailleur not having enough travel

Here are some things to check, particularly if this crank and FD once were working well together: The FD clamp angle can't be tweaked slightly to give the clearance needed. The BB is assembled right, ...
Nathan Knutson's user avatar
8 votes
Accepted

I can operate any stick shift without the owner's manual; can I operate any front derailleur with no manual?

Many left road shifters, including almost all recent higher end ones, have four positions, i.e. there's a trim stop for both the small and large ring. There is not, nor in practical terms could there ...
Nathan Knutson's user avatar
8 votes

Improving front derailleur shifting

On my mum's bike, we used an old friction shifter for the left hand. It saves alot of bother and two rings are easy -- up for high ratio and down for low ratio. Tiagra flat bar shifters exist and ...
Noise's user avatar
  • 13.9k
8 votes
Accepted

Triple ring front derailleur skipping middle chain ring when downshifting

Front Derailleur is a pretty simple mechanical device and unlikely the cause of the problem. It is possible that it is not setup correctly and replacing it would end up with the new one working, not ...
mattnz's user avatar
  • 50.5k
7 votes

How can I fit a bigger rear tyre when limited by the front derailleur?

Use a side swing derailleur such as this one: https://bike.shimano.com/en-EU/product/component/alivio-m3100/FD-M3100-M.html This eliminates the linkage behind the seat tube, giving you more clearance. ...
MaplePanda's user avatar
  • 15.6k
7 votes

How can I fit a bigger rear tyre when limited by the front derailleur?

The option I took in the end worked really rather well - I upgraded the front tyre from 2.1" to 2.25" (Nobby Nic) and kept the back at 2.1" with considerably more tread (Rapid Rob) for ...
Chris H's user avatar
  • 58.9k
7 votes
Accepted

No trim and can't shift into small chainring

Sounds like you have a bit too much cable tension in your new configuration. Usually cable tension is tuned with the barrel adjuster you mentioned, but if you cannot get the tension low enough with ...
Wsal's user avatar
  • 601
7 votes
Accepted

Is the cable pull of Shimano GRX FD-RX400 same as the one of 10- or 11-speed road groups?

11 speed GRX 810 and 600 are compatible with 9000, 8000, 7000, 6800, 5800 etc. 11 speed road groups - so it obviously uses the 11 speed cable pull ratio. 10 speed GRX 400 is compatible with the ...
Argenti Apparatus's user avatar
7 votes

How do I fix my front derailleur?

Shift into the lowest (innermost) gear. This removes the cable tension as much as possible without undoing the pinch bolt and removing the cable Loosen the bolt that clamps the derailleur to the seat ...
Argenti Apparatus's user avatar
7 votes
Accepted

How to clean the front derailleur?

The little riveted points you mention are pivots, there are a bunch of them. What you can do is spray a little lubricant in each pivoting part of the derailleur, then physically move it side to side ...
Swifty's user avatar
  • 12.8k
7 votes

Shimano 105 5800 front derailleur hard to shift up

With the "long armed" Shimano road front derailleurs (FD-4700, 5800, 6800, and 9000) it is hard to overstate how much cable tension is needed to avoid the exact problem you're having. They ...
Nathan Knutson's user avatar
7 votes

Did I just buy an inverted front derailleur?

Routing the cable on a front derailleur can be confusing and it's easy to insert the cable in the wrong place. An experienced mech recently told me that many front derailleurs can be installed in ...
Selusiac's user avatar
  • 162
7 votes
Accepted

Improving front derailleur shifting

RD-3500 is a "road" 9-speed derailleur. Shimano "road" derailleurs up to 10 speeds (exception: GRX, Tiagra 4700, 10-speed) used the same cable pull ratio that "MTB" ...
juhist's user avatar
  • 18.7k
7 votes

Does Giant Contend 1 support 9 or 18 speeds?

It’s a 2x9 speed. You have 2 chainrings in the front and 9 cogs/sprockets in the rear. This allows for 18 different gear combinations but some of the ratios will be pretty close together (i.e. overlap)...
Michael's user avatar
  • 27.4k

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