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Search: Posts Made By: RoCou
Showing results 1 to 31 of 31
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Forum: Bicycle Mechanics
08-10-21, 02:34 PM
Replies: 22
Views: 3,629
Posted By RoCou

I agree with ClydeClydeson . This has nothing to...

I agree with ClydeClydeson . This has nothing to do with fatigue (which happens below the plastic deformation limit). It's bent = you have gone beyond the plastic deformation limit of the material....
Forum: Bicycle Mechanics
08-10-21, 02:20 PM
Replies: 34
Views: 2,072
Posted By RoCou

Eliminate other potentials: - Seat/seat post:...

Eliminate other potentials:
- Seat/seat post: Make sure you can produce the noise when standing up. If you can't, you've found the problem area,
- Stem/bars/front end: Same deal. Let go of the...
Forum: Bicycle Mechanics
08-10-21, 02:11 PM
Replies: 7
Views: 642
Posted By RoCou

Too much cable tension: no. If the derailleur was...

Too much cable tension: no. If the derailleur was in the correct position in the middle ring, the cable tension is correct (adding tension would pull the cage out). Maybe the high stop is too low and...
Forum: Bicycle Mechanics
01-08-20, 01:38 PM
Replies: 17
Views: 1,188
Posted By RoCou

Shimano tech documents (si.shimano.com).

Shimano tech documents (si.shimano.com).
Forum: Bicycle Mechanics
01-08-20, 01:32 PM
Replies: 8
Views: 1,343
Posted By RoCou

I beg to disagree. There are tons of low-cost...

I beg to disagree. There are tons of low-cost wheels delivered with thin shrink-wrap-type rim tape; that does not mean it's the best. I've ridden my n-1 road bike of its (absurd) tendency to flat by...
Forum: Bicycle Mechanics
01-07-20, 09:29 AM
Replies: 3
Views: 2,947
Posted By RoCou

Thanks, that's what I figured out. The spacer...

Thanks, that's what I figured out. The spacer question comes from the original FC-6600 Technical Service Instructions from Shimano - they specify the use of a spacer for the left crankarm on triple...
Forum: Bicycle Mechanics
01-06-20, 09:47 AM
Replies: 60
Views: 2,898
Posted By RoCou

Use the opportunity with the cables disconnected...

Use the opportunity with the cables disconnected to test the shifters - for each shifter, keeping the cable under hand tension, go through the range of the gears, checking that cable payout is...
Forum: Bicycle Mechanics
01-06-20, 09:03 AM
Replies: 3
Views: 2,947
Posted By RoCou

Shimano Ultegra FC-6600 left crank compatibility

I'm looking at installing a Stages power meter (left side only) on my not-so-new ride. It currently has an Ultegra FC-6600 crankset (10-sp, 2x). Would a 105 5800 left crank arm fit there? And if so,...
Forum: Bicycle Mechanics
08-22-19, 08:20 AM
Replies: 4
Views: 1,479
Posted By RoCou

Can't run 3/32 chain on 1/8 cog/chainring. The...

Can't run 3/32 chain on 1/8 cog/chainring. The inverse (1/8 chain on 3/32 cog and/or chainring) runs fine.

Note that "3/32 chain" means a whole range of chain widths, from 7/8-speed all the way to...
Forum: Bicycle Mechanics
08-20-19, 11:10 AM
Replies: 11
Views: 1,402
Posted By RoCou

The shop manual procedure is the other way around...

The shop manual procedure is the other way around - adjust the deraileur offset (done in 5th cog, going to adjust mode, fine-tuning offset), then (and only then) do you dial in the limits. They have...
Forum: Bicycle Mechanics
08-20-19, 10:59 AM
Replies: 11
Views: 1,402
Posted By RoCou

Yes. Standard installation on the hanger, hanger...

Yes. Standard installation on the hanger, hanger alignment is the same - unscrew the RD mounting bolt (5mm Allen), place alignment gauge in its place (Park DAG is the classical one), align, remove...
Forum: Bicycle Mechanics
08-19-19, 03:32 PM
Replies: 11
Views: 1,386
Posted By RoCou

Wilson, in Bicycling Science, demonstrated there...

Wilson, in Bicycling Science, demonstrated there is a descending speed at which the rim tempreature peaks; his test consisted of maintaining a descending bike at constant speed with constant brake...
Forum: Bicycle Mechanics
08-13-19, 02:53 PM
Replies: 43
Views: 6,947
Posted By RoCou

And since we agree it was crashed, the next...

And since we agree it was crashed, the next logical question is - how. Car door. How do I know? Been there, done that, got the frame bend. No scratches on the frame.
Forum: Bicycle Mechanics
08-13-19, 02:45 PM
Replies: 25
Views: 3,255
Posted By RoCou

In a bike repair thread, the probability of a...

In a bike repair thread, the probability of a Dremel being recommended increases exponentially with the length of the thread.

(I'm guilty of dremeling threads here as well).
Forum: Bicycle Mechanics
08-13-19, 02:41 PM
Replies: 43
Views: 6,947
Posted By RoCou

It's a tube that failed (partly) in buckling -...

It's a tube that failed (partly) in buckling - the result of a lengthwise force that exceeded the capacity of the tube. Like when you press leghtwise on a bathroom paper tube. Trek's Alpha 300...
Forum: Bicycle Mechanics
08-13-19, 06:45 AM
Replies: 25
Views: 3,255
Posted By RoCou

You need to pull on the crank spider, not the...

You need to pull on the crank spider, not the chainrings. It works - if you have the right puller that will fit into the crankarm hole, sit correctly on the axle face, and grab correctly onto the...
Forum: Bicycle Mechanics
08-13-19, 06:35 AM
Replies: 16
Views: 5,038
Posted By RoCou

The pilot needs to know if there are live animals...

The pilot needs to know if there are live animals in the cargo hold, and then activate cargo heat. Otherwise, the cargo hold does not get heated up (saving fuel in the process) The temperature then...
Forum: Bicycle Mechanics
08-05-19, 10:48 AM
Replies: 14
Views: 1,824
Posted By RoCou

That's how I ended up buying a Park DAG. The...

That's how I ended up buying a Park DAG. The price of the tool is pretty much in line with shop cost + transport to the shop + aggravation of waiting hours/days.
Forum: Bicycle Mechanics
08-05-19, 08:15 AM
Replies: 52
Views: 5,077
Posted By RoCou

The OP has clearly demonstrated the answer to the...

The OP has clearly demonstrated the answer to the question. As to why, the carbon fibers themselves in the composite are highly conductive, and thus CFRCs can indeed generate galvanic corrosion with...
Forum: Bicycle Mechanics
08-05-19, 08:04 AM
Replies: 52
Views: 5,077
Posted By RoCou

No, but this...

No, but this (https://www.dremel.com/en_US/products/-/show-product/accessories/125-high-speed-cutter). There are angle-drive attachements (this...
Forum: Bicycle Mechanics
08-05-19, 07:52 AM
Replies: 52
Views: 5,077
Posted By RoCou

Use a cutting bit. You can get it down the post...

Use a cutting bit. You can get it down the post as far as the bit is long. The hacksaw in holder method would also work.
Forum: Bicycle Mechanics
08-03-19, 09:18 PM
Replies: 52
Views: 5,077
Posted By RoCou

Taking it out in destructive mode is easy - cut...

Taking it out in destructive mode is easy - cut it above the frame, and Dremel multiple grooves straight down the inside of the post.
Forum: Bicycle Mechanics
08-02-19, 11:35 AM
Replies: 13
Views: 2,076
Posted By RoCou

In theory both approaches work, in practice one...

In theory both approaches work, in practice one (axle spacing) requires dealing with both ends of the axle equally, and probably require removing the cassette + cassette body, the other (cassette...
Forum: Bicycle Mechanics
08-02-19, 09:50 AM
Replies: 23
Views: 4,146
Posted By RoCou

Apparently there *is* also a rear freewheel in a...

Apparently there *is* also a rear freewheel in a Shimano FFS, but one with a lot of friction built-in; this is meant to allow the chain to stop when your pants bet stuck into it. I suggest you test...
Forum: Bicycle Mechanics
08-02-19, 07:39 AM
Replies: 31
Views: 6,140
Posted By RoCou

It was meant as a compliment, by the way. I've...

It was meant as a compliment, by the way. I've taken a freewheel ratchet apart once before - back in the freewheel days, not cassettes - and it wasn't a pretty experience, but the patient lived on....
Forum: Bicycle Mechanics
08-02-19, 07:26 AM
Replies: 13
Views: 2,076
Posted By RoCou

Main issue is that (cassette) spacers are...

Main issue is that (cassette) spacers are typically 1mm thick, and the cog spacing on (say) a Shimano 10-sp setup is 3.95mm. You're likely to be unable to do a change small enough to bring the two...
Forum: Bicycle Mechanics
08-02-19, 07:18 AM
Replies: 23
Views: 4,146
Posted By RoCou

For all the talk about maintaining things we have...

For all the talk about maintaining things we have as long as possible to avoid dumping them into landfills, a Shimano front-freewheel system *does* belong into the trash heap. It's like having all...
Forum: Bicycle Mechanics
07-30-19, 05:17 PM
Replies: 9
Views: 1,126
Posted By RoCou

They are quite common on fixed-gear wheels. They...

They are quite common on fixed-gear wheels. They do look cool.
Forum: Bicycle Mechanics
07-30-19, 11:54 AM
Replies: 7
Views: 931
Posted By RoCou

It's either the shifter, the cable run to the RD,...

It's either the shifter, the cable run to the RD, or the RD itself. Easiest to eliminate is the latter - place the bike on a workstand, remove the rear wheel, shift the bike to the lowest gear...
Forum: Bicycle Mechanics
07-30-19, 11:19 AM
Replies: 31
Views: 6,140
Posted By RoCou

You guys are *way* past the point at which I...

You guys are *way* past the point at which I would have found a used rear wheel to replace this one.
Forum: Bicycle Mechanics
07-30-19, 11:11 AM
Replies: 52
Views: 5,077
Posted By RoCou

The classical method is to remove the seat, clamp...

The classical method is to remove the seat, clamp the top of the seat post in a bench-mounted vise, and turn the frame - allowing a much longer lever than other methods. But with a carbon post, the...
Showing results 1 to 31 of 31


 
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