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Search: Posts Made By: oldbobcat
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05-24-20, 09:49 PM
Replies: 32
Views: 31,635
Posted By oldbobcat

We had a guy come in with a partially built...

We had a guy come in with a partially built cyclocross bike from Bikes Direct, the cables cut and attached and dragging the works on the floor like a daisy chain. Needless to say, it cost more to...
05-24-20, 09:43 PM
05-24-20, 09:40 PM
Replies: 15
Views: 612
Posted By oldbobcat

If the cage angle is correct (outer plate...

If the cage angle is correct (outer plate parallel to the chain rings) and the cage height is correct (1-2mm above the tallest teeth on the big ring), the reason for overshifting the big ring is...
05-24-20, 09:22 PM
Replies: 18
Views: 616
Posted By oldbobcat

The R6800 derailleur has a dual-position pin that...

The R6800 derailleur has a dual-position pin that is set based on the angle of the cable span between the end of the arm and the the exit point behind the bottom bracket. The wrong position for this...
05-24-20, 08:45 PM
Replies: 21
Views: 707
Posted By oldbobcat

Small frame, not very. Large frame, less not very.

Small frame, not very. Large frame, less not very.
05-24-20, 08:41 PM
Replies: 8
Views: 383
Posted By oldbobcat

Selection of a spindle length depends, however,...

Selection of a spindle length depends, however, on the crank spec, the bottom bracket shell width, and the chain line. That is, the middle ring or the space between double rings must align with the...
05-24-20, 08:32 PM
Replies: 6
Views: 220
Posted By oldbobcat

See if your locality has a bicycle repair...

See if your locality has a bicycle repair cooperative. They might have workable forks removed from otherwise destroyed bikes. Or, ask your local shops if they have an account with J&B Importers...
05-24-20, 08:17 PM
Replies: 32
Views: 31,635
Posted By oldbobcat

Take the shop's price for a basic tune-up...

Take the shop's price for a basic tune-up (everything adjusted, aligned, trued, and wiped down) and add about $20 for unpacking and some extra assembly.
05-24-20, 02:05 PM
Replies: 2
Views: 174
Posted By oldbobcat

I'll bet the side treads on the toes of your...

I'll bet the side treads on the toes of your shoes are too deep and putting too much pressure on the sides of the pedals and too much tension between the cleat and the hold-down lugs on the pedals....
05-24-20, 01:45 PM
Replies: 9
Views: 328
Posted By oldbobcat

Having watched chains skate over crank spider...

Having watched chains skate over crank spider flanges of very slightly worn 38t chainrings mounted correctly on 130mm BCD cranks, I believe you would have to file these down to the chainring bolt...
05-17-20, 01:34 PM
Replies: 12
Views: 501
Posted By oldbobcat

BB7s are excellent mechanical brakes when set up...

BB7s are excellent mechanical brakes when set up and adjusted correctly.
05-17-20, 01:31 PM
Replies: 4
Views: 176
Posted By oldbobcat

Campagnolo freehub bodies are a little wider than...

Campagnolo freehub bodies are a little wider than standard Shimano 8-10 speed bodies.On the other hand, wheels that are built for both drivetrains, like Mavic's, us a wider Shimano body with an extra...
05-17-20, 01:26 PM
Replies: 23
Views: 631
Posted By oldbobcat

I never used one for about 35 years, until I...

I never used one for about 35 years, until I "went pro." They make the job faster and easier, but they're not necessary.
05-17-20, 01:22 PM
Replies: 78
Views: 2,854
Posted By oldbobcat

Remove the reflectors, true the wheels, replace...

Remove the reflectors, true the wheels, replace tires if damaged (and use quality tires and make sure they're seated correctly), and if the tubes have chunks of dried up sealant inside them, get new...
05-17-20, 01:17 PM
Replies: 9
Views: 269
Posted By oldbobcat

Use the cable adjuster on the derailleur or...

Use the cable adjuster on the derailleur or inline on the cable to pull a little tension on the cable. One or two clicks at a time. And don't mess with the limit screws.
04-14-20, 07:13 PM
Replies: 24
Views: 562
Posted By oldbobcat

700c with a coaster brake is an odd duck. You...

700c with a coaster brake is an odd duck. You could ask your local bike shop to build one for you.
04-13-20, 12:41 PM
Replies: 9
Views: 235
Posted By oldbobcat

Beware. There is Octalink V1 and Octalink V2. The...

Beware. There is Octalink V1 and Octalink V2. The difference is in the spline length, although I've forgotten which is which.
04-13-20, 12:40 PM
Replies: 9
Views: 235
Posted By oldbobcat

That's Hollowtech II.

That's Hollowtech II.
04-11-20, 06:51 PM
Replies: 16
Views: 686
Posted By oldbobcat

Aye, there's your problem right there. Derailleur...

Aye, there's your problem right there. Derailleur chains elongate past usefulness after 1500-3000 miles, depending on hygiene, maintenance, and riding style. Properly replacing chains, you should...
04-05-20, 08:52 PM
Replies: 8
Views: 291
Posted By oldbobcat

[QUOTE=JeffOYB;21402068]Are you saying that all...

[QUOTE=JeffOYB;21402068]Are you saying that all Speedplay cleats come with plates that have 3 slots in them? That wd be great!

OK, it looks like Speedplay Zero cleats come with, or can be bought...
04-05-20, 08:48 PM
Replies: 8
Views: 291
Posted By oldbobcat

[QUOTE=JeffOYB;21402068]Are you saying that all...

[QUOTE=JeffOYB;21402068]Are you saying that all Speedplay cleats come with plates that have 3 slots in them? That wd be great!

OK, it looks like Speedplay Zero cleats come with, or can be bought...
04-03-20, 09:09 PM
Replies: 13
Views: 439
Posted By oldbobcat

I hope you still fixed it.

I hope you still fixed it.
04-03-20, 09:03 PM
Replies: 13
Views: 439
Posted By oldbobcat

If you keep riding it without fixing it, though,...

If you keep riding it without fixing it, though, your spindle is turning directly on the inside race of the bearing. Keep it up long enough and you will polish a groove on the spindle, meaning you'll...
04-03-20, 08:49 PM
Replies: 7
Views: 299
Posted By oldbobcat

Remove the crank from the spindle. Re-read the...

Remove the crank from the spindle. Re-read the instructions carefully. Re-insert the crank onto the spindle according to the instructions. Be sure to align the splines on the spindle with the notches...
04-03-20, 02:25 PM
Replies: 7
Views: 299
Posted By oldbobcat

Does it do it when you push on the crank on the...

Does it do it when you push on the crank on the other side?
04-03-20, 02:23 PM
Replies: 12
Views: 502
Posted By oldbobcat

Technically possible, yes. Feasible, how much...

Technically possible, yes. Feasible, how much money do you want to put into a 30 year old rusty commuter?
04-03-20, 02:13 PM
Replies: 19
Views: 734
Posted By oldbobcat

I've never seen a Di2 front derailleur that...

I've never seen a Di2 front derailleur that hasn't been in a crash tweaked like that. Since the bike is alloy and the tab is thin and the misalignment is small in the overall scale of things, you...
04-02-20, 03:42 PM
Replies: 4
Views: 360
Posted By oldbobcat

All the SRAM and Shimano shifters I mentioned are...

All the SRAM and Shimano shifters I mentioned are available in pairs or singles.
04-02-20, 01:24 PM
Replies: 19
Views: 734
Posted By oldbobcat

So it looks like the derailleur cage is tailed...

So it looks like the derailleur cage is tailed out, and you can't align the outer plate parallel with the chainrings. Is that correct? Just trying to get a handle on this.

Never mind, I read more...
04-01-20, 09:09 PM
Replies: 4
Views: 360
Posted By oldbobcat

If you're just replacing both shifters, another...

If you're just replacing both shifters, another SRAM X4 set would be your best bet. Really, if you don't crash it into things it should last as long as the rest of the bike. If that is a problem, you...
04-01-20, 04:41 PM
Replies: 8
Views: 385
Posted By oldbobcat

Sorry for deflecting, but why a Cobb. Cobb's...

Sorry for deflecting, but why a Cobb. Cobb's target is experienced riders who want to maximize performance by trying something very different.

I suggest taking your bike to your local shop,...
03-14-20, 08:56 PM
Replies: 12
Views: 698
Posted By oldbobcat

My estimation would be that the one labeled...

My estimation would be that the one labeled "outside" goes on the outside. The recess along the inside circumference looks like it's meant to mate with a seal on the inside of the crank arm.

It...
03-14-20, 08:32 PM
Replies: 36
Views: 9,886
Posted By oldbobcat

While there may be ways to jury-rig a 3x11...

While there may be ways to jury-rig a 3x11 system, I'd think it's not worth the trouble. Currently in production, though, is Tiagra 4703 3x10, with 50-39-30 chainrings, a GS medium cage rear...
03-14-20, 07:51 PM
Replies: 12
Views: 463
Posted By oldbobcat

Maybe. While it appears a little on the long...

Maybe. While it appears a little on the long side, it would be helpful to see what it looks like on big/big before trying to shorten it. But many experienced riders don't use small/small anyway,...
03-06-20, 04:54 PM
Replies: 11
Views: 394
Posted By oldbobcat

Take your axle and cones to your local bike shop...

Take your axle and cones to your local bike shop and tell them what you want. If it isn't in stock they should be able to order a replacement from QBP and get it in a day or so.
03-06-20, 04:48 PM
Replies: 2
Views: 228
Posted By oldbobcat

At its loosest position. If your shifter is...

At its loosest position. If your shifter is pulling tension on the cable, then there is no slack.
02-21-20, 03:44 PM
Replies: 25
Views: 818
Posted By oldbobcat

You can buy an inexpensive wooden miter box with...

You can buy an inexpensive wooden miter box with 90 and 45 degree cutting slots at a hardware store. Use a hacksaw and work carefully, and clean the edges with sandpaper, emery cloth, or a file. It...
01-20-20, 07:36 PM
Replies: 33
Views: 904
Posted By oldbobcat

In general, undersize chain rings are a crap...

In general, undersize chain rings are a crap shoot. The reduced diameter brings the chain closer to the nuts on the inside of the inner ring and the flange of the spider between the ring. This can...
01-10-20, 10:30 PM
Replies: 60
Views: 2,351
Posted By oldbobcat

The chain is severely elongated (worn out), the...

The chain is severely elongated (worn out), the teeth on the derailleur pulleys are almost completely worn off, the cassette is worn out, and the chain is too long as installed. I'm looking at the...
01-08-20, 07:49 PM
Replies: 60
Views: 2,351
Posted By oldbobcat

Chain could be too long.

Chain could be too long.
01-08-20, 07:45 PM
Replies: 6
Views: 470
Posted By oldbobcat

The reason the axle isn't wiggling when you yank...

The reason the axle isn't wiggling when you yank a crank arm is is the same reason the crank feels stiff or binding. Something is not right. either a bearing is not set in the frame straight, or...
12-29-19, 09:40 PM
Replies: 5
Views: 277
Posted By oldbobcat

All Shimano front shifters for 10- and 11-speed...

All Shimano front shifters for 10- and 11-speed doubles have four positions.
12-29-19, 09:29 PM
Replies: 9
Views: 525
Posted By oldbobcat

I've also removed allen bolts with rounded heads...

I've also removed allen bolts with rounded heads using, very gingerly, the largest torx wrench that will fit, after soaking the threads with Chill Zone. By gingerly I mean, at the first sign of...
12-29-19, 09:22 PM
Replies: 9
Views: 353
Posted By oldbobcat

I'm not seeing any reply to this very pertinent...

I'm not seeing any reply to this very pertinent question. If you spread the rear end from 120 or 126 mm to 130 mm, the dropouts will be out of parallel. They need to be realigned, mainly to eliminate...
12-08-19, 10:01 PM
Replies: 42
Views: 1,561
Posted By oldbobcat

Which Schwalbe Marathon, and what size? They come...

Which Schwalbe Marathon, and what size? They come in several models and widths.

26x2.00 is a wide rim so your tire choices are limited.
11-25-19, 10:22 PM
Replies: 21
Views: 1,027
Posted By oldbobcat

Mechanical disk brakes were designed to replace...

Mechanical disk brakes were designed to replace linear-pull brakes, so they need long-pull levers--levers that pull more cable for less caliper motion. Road brake levers are short-pull. So you might...
11-27-17, 10:47 PM
Replies: 14
Views: 4,978
Posted By oldbobcat

On the small side, but unless you need to sit...

On the small side, but unless you need to sit upright like a bus driver you should be able to make this work with the right stem, handlebar, and seatpost.
11-27-17, 10:42 PM
Replies: 6
Views: 1,893
Posted By oldbobcat

Hybrids and mountain bikes are sized differently...

Hybrids and mountain bikes are sized differently from road bikes which are sized differently from triathlon/time trial bikes.

The nominal (advertised) size of your FX is 22.5". At 6'1" you're at...
10-14-17, 10:06 PM
Replies: 8
Views: 1,161
Posted By oldbobcat

I've got the inflamed metatarsal nerve ailment,...

I've got the inflamed metatarsal nerve ailment, and metatarsal pads work for that. Body Geometry and Giro aftermarket footbeds have these pads built in, as do many new running and walking footbeds...
10-14-17, 08:50 PM
Replies: 6
Views: 1,646
Posted By oldbobcat

First, the bottom bracket has nothing to do with...

First, the bottom bracket has nothing to do with the stem. Forget about that.

Regarding reach, there are two components after frame reach--that's stem length and handlebar reach. The right...
Showing results 1 to 50 of 1000
 


 
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