7
votes
FSA Tempo crankset is not compatible with FSA Vero
First, just that both say "FSA Road" doesn't mean that they are compatible.
The answer is to look up the documentation for the crankset. It's the first Google hit if you search with the name ...
- 21.8k
6
votes
Accepted
Correcting the chainline on triple crankset with chainring spacers
When 135mm-spaced QR and 142x12 thru axle disc road frames became the norm, a lot of what was written about bike chainline took on a hidden caveat that in many cases hasn't been corrected, which is ...
- 81.9k
5
votes
Is the use of wide fatbike tires problematic with 100mm BSA bottom brackets?
The math is easy to do.
According to Sheldon Brown, fatbike chainline is 66 or 76mm for dropout spacings of 170 and 190mm respectively.
Assuming a 100mm BB is used with a 170mm dropout spacing and ...
- 75.5k
5
votes
Chain keeps skipping - did I cut it too short?
The cassette does not look worn out
A cassette that is worn does not look worn.
It'll skip anyway despite not looking worn.
I suspect your cassette is simply too worn.
(Interestingly, for chainrings ...
- 18k
5
votes
Accepted
SRAM dub crank chainline
You have it right. For most installations with 1x SRAM mountain cranks, the -6mm offset is for 135 QR and 142x12, and the -3mm is Boost aka 148x12.
The "most installations" qualifier is due ...
- 81.9k
5
votes
Abnormal wear on Gates Belt Drive CDX rear sprocket
It looks like either you didn't have your lock ring tight enough and the splines of this sprocket were able to chatter and wiggle themselves into non- existence, and /or your belt was too tight. If ...
- 1,490
4
votes
What can I do to stop my front dérailleur rubbing against the crank arm?
If you already adjusted the front derailleur, there is not much to do. As you wrote yourself, the distance between crank arm and chainring is too small for your derailleur. Ask Rotor about compatible ...
- 21.8k
4
votes
How much tolerance is acceptable on the chainline of a fixed gear conversion?
Freehub body spacer kits for positioning the rear sprocket include spacers of many different widths. The possible combinations of spacers on the inboard and outboard side of the sprocket to be ...
- 75.5k
4
votes
How much tolerance is acceptable on the chainline of a fixed gear conversion?
There is no hard and fast limit. The farther off the cogs are, the worse vibration and wear you will get. My personal experience is that a couple of millimeters off is still smooth and at 5 mm the ...
- 21.8k
4
votes
Accepted
What is special about 1x11 - why not just big cassette and single front ring?
SRAM have emphasized the 1x configuration, but 1x systems can be built from Shimano components too.
You are right that a 1x system is pretty much a wide ratio cassette and a single front ring. Double-...
- 75.5k
4
votes
swapping crankset and chainline compatibility
Yes, that's enough to create situations where you may have chain rub that can't be adjusted out in some additional gears on most road bikes. There are other factors, namely chainstay length - bikes ...
- 81.9k
4
votes
Accepted
Is it safe to bolt my single-speed chainring to the other side of the crank?
Looks perfectly safe to me.
In fact, it looks like that crankset's spider arms were designed to also be used as a double crankset for a bike with a front derailleur, with chainrings mounted on both ...
- 10.6k
4
votes
SRAM Rival chainline on a 1x System, feeling the chain slipping into place
SRAM ETAP is very particular about the setup. There are several how-to videos that SRAM has made to show all the steps. The gap between the upper pulley and the cogs is pretty important. SRAM should ...
- 81
3
votes
Is the Shimano 2303 crank arm and the 2300 crank arm the same?
Not a specialist on this, but I assume that the 2303 (being a triple crankset) would have the chainline aligned to have the middle ring right on the center of the cassette, while the 2300 would ...
- 21.7k
3
votes
Accepted
Converting road single speed bike to 1x
Steel frame can be set out to accommodate a 135 mm rear hub without substantial effort (bear in mind that the dropouts will need to be realigned).
With a rear derailleur the chainline is not an issue (...
- 4,281
3
votes
Andel crankset, BB axle length and chainline
It will be 3.5 mm off, and that is quite bad. Square taper bottom brackets aren't that expensive or difficult to replace, just get a correct one.
- 21.8k
3
votes
Accepted
Changing the rear wheel offset to allow space for freewheel
Random interference with the chainstays/seatstays/dropouts like this just happens sometimes. It's not really anyone's fault.
If you added 3mm of spacer to the drive side and took 3mm away from the ...
- 81.9k
3
votes
Accepted
Does the BB axle (spindle) lengths 1:1 compare for square taper and octalink?
No. And not only that, if you were to stay with square taper cranks you would find that the BB length for one crank does not necessarily match the BB length for another crank.
In other words, if you ...
- 2,120
3
votes
Cross-chaining in terms of angles
Rear cogs on a 9-speed are about 4.5mm apart, center to center. A typical chainstay length is a hair over 400mm. The arctangent of 4.5/400 is about 0.65 degrees. At such a shallow angle you can ...
- 53.4k
3
votes
Adjusting chain line by mounting the chain ring inside the crank spider
Yes you can do it that way and you are doing the math right if 7 is the number you're getting. You sacrifice (or at least change) q-factor doing this and I would encourage not to do that lightly on a ...
- 81.9k
3
votes
How does SRAM adjust rear chainline for their "wide" front drivetrain
How did they make up this difference in the rear chainline? Or did they?
They didn't
Is the chainline now just off?
Yes
Why?
Standard road bike chainline is 45mm. This chainline was designed around ...
- 2,370
2
votes
What can I do to stop my front dérailleur rubbing against the crank arm?
Kind of a cheap-shot answer, but you could revert back to the original. That would certainly cure your noise problem.
I'd be concerned on the follow-on effects of upgrades, where one simple change ...
- 121k
2
votes
Chain contact on rear triangle
32 teeth should be enough to clear the frame. Even using a 30 Tooth (pictured below) there is still plenty of frame clearance. That's a different frame, but still, it looks like there would be plenty ...
- 21.7k
2
votes
chain line with narrow-wide chain ring
Change into the middle gear in the cassette and check the chain is straight. Otherwise, you may need to remove a bottom bracket spacer (usually 2.5mm thick) from the drive side and move it to the non-...
- 161
2
votes
Accepted
Smaller chainring on the right side of a bigger one possible?
I've done the chain-setting by hand for a couple days when I was waiting for a replacement front mech to arrive. It worked, but without a FD cage the chain could bounce around and fall off at bumps, ...
- 121k
2
votes
Alfine 8 vs Alfine 11 Gates CDX chainline?
Presumably Shimano expect you to pair the Alfine hub with the Alfine cranks. The Alfine cranks (FC-S501) have a chainline listed directly on Shimano's site of
49.2 (double chain guard) 42.7 (...
- 1,058
2
votes
Accepted
Alfine 8 vs Alfine 11 Gates CDX chainline?
The obvious place to look is Shimano's specifications page, but that does not appear to give chainline.
A bit of googling found a couple of pages that give specs for the Alfine 8 and 11.
This page ...
- 75.5k
2
votes
Smaller chainring on the right side of a bigger one possible?
Since the front derailleur moves up when shifting out and the outer ring is smaller, the chain will most likely fall off. And shifting inwards will wear the bigger chainring since it is not made for ...
- 980
2
votes
I want to convert a 1-piece crank triple chainring to a double
Yes, you need to consider chain line, but that does not mean you cant swap in larger rings on the middle and outer positions.
Sounds like right now you are are using the middle and outer chainrings ...
- 75.5k
2
votes
Cross-chaining in terms of angles
There is a paper on bicycle chain efficiency from John Hopkins that discusses this issue along with others. Basically, cross-chaining being "bad" is a myth with relatively modern chains and cassettes. ...
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