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Search: Posts Made By: sch
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05-15-21, 12:20 PM
Replies: 12
Views: 256
Posted By sch

From your final set of pix, the DS looks fine to...

From your final set of pix, the DS looks fine to me. The NDS also looks ok with the few threads showing not a matter of
concern. Cross threading will always occur within the first 1-2 threads and...
04-17-21, 08:59 AM
Replies: 5
Views: 323
Posted By sch

34t works fine on my GS Di2 RD and also on my GS...

34t works fine on my GS Di2 RD and also on my GS 7000 RD. IIRC GS is medium length cage
designation.
02-16-21, 09:51 AM
Replies: 6
Views: 302
Posted By sch

Looking at the center of the rotors, they clearly...

Looking at the center of the rotors, they clearly mount differently with the bottom coarsely splined a la cassette
type splines and the top with a finer sawtooth mount. So the hub disc mount would...
02-16-21, 09:48 AM
Replies: 9
Views: 467
Posted By sch

Consider using loktite on the set screw to better...

Consider using loktite on the set screw to better secure it in place before reassembly, just a bit
not slathered. Presume the set screw is for a hub with sealed bearings?
02-14-21, 03:18 PM
Replies: 29
Views: 1,055
Posted By sch

You realize a fairly athletic youthful human is...

You realize a fairly athletic youthful human is good for maybe 200-250 watts to the pedals for maybe an hour or two?
Pro level outputs are on the order of 400+ watts for 30-60 minutes at the top...
02-04-21, 10:49 AM
Replies: 8
Views: 411
Posted By sch

Timing chains last 3-5x as long as the derailler...

Timing chains last 3-5x as long as the derailler chain on a tandem. It does not matter what kind of chain you
use. 5-6spd chains are fine but 8-9spd are also fine as are 10 or 11 spd chains. The...
01-30-21, 03:37 PM
Replies: 23
Views: 670
Posted By sch

Been using innominata, 3M and a few Harbor...

Been using innominata, 3M and a few Harbor Freight kit zips for 25 yrs on my bikes. Never had a failure yet. I use white
on my Ti or natural Al parts and black on the black bike. With cable changes...
01-19-21, 08:44 AM
Replies: 13
Views: 585
Posted By sch

I once dealt with a frame with no brazed on...

I once dealt with a frame with no brazed on bosses and when the OEM clampon shifters on the DT were replaced with 8 spd variants
in the late '90s I found it expedient to drill a small hole on the...
12-30-20, 09:40 PM
Replies: 23
Views: 1,743
Posted By sch

KMC is a Taiwanese company that extensively...

KMC is a Taiwanese company that extensively manufactures in China so provenance is correct. As to fakes on Taobao, guaranteed, as it is an omnium
compendium chinese outlet. So is the chain a fake?...
12-12-20, 11:38 AM
Replies: 11
Views: 596
Posted By sch

If you had access to a MIG welder or a friend...

If you had access to a MIG welder or a friend with one, weld a slightly smaller nut to the stripped nut and
use a wrench to get it off. Replacement "T" nuts are available for this type mount....
11-19-20, 01:39 PM
Replies: 78
Views: 5,151
Posted By sch

A followup report after ~1000 or so miles of...

A followup report after ~1000 or so miles of riding would be appreciated. Thanks very much for the well documented repair.
I would have no real concerns about riding the frame with provisos that...
11-16-20, 10:01 PM
Replies: 3
Views: 501
Posted By sch

Cable is standard generic shifter cable, of which...

Cable is standard generic shifter cable, of which 98% are the same diameter. Stainless is the best choice as it is
not much more expensive than galvanized and coated cables tend to lose their...
11-09-20, 07:06 AM
Replies: 6
Views: 367
Posted By sch

My experience with using my surfeit of 10 spd KMC...

My experience with using my surfeit of 10 spd KMC or SRAM chains on 3 different bikes with 11 spd cassettes is that
they work fine. The deraillers and cassettes/CW seem unaware of the difference. ...
10-30-20, 09:06 AM
Replies: 25
Views: 1,008
Posted By sch

One place to start is here:...

One place to start is here: https://www.parktool.com/blog/repair-help?query=&area%5B%5D=153809
You can also do a search on youtube for how to adjust/bleed bicycle disk brakes.
You can also search...
10-26-20, 10:06 PM
Replies: 24
Views: 1,051
Posted By sch

That looks like a significant % of the thickness...

That looks like a significant % of the thickness of the steel is now converted to rust judging from the
bubbled paint, and the hole in the tube suggests that the inside is also rusting as well. ...
10-17-20, 02:04 PM
Replies: 67
Views: 3,055
Posted By sch

Thanks for the followup, but do let us know if...

Thanks for the followup, but do let us know if the repair fails or if it is still repaired in 6 or 12 months. Welding AL tubing 1/16" thick takes some experience
and sleeving it or adding a gusset...
10-13-20, 08:42 PM
Replies: 54
Views: 4,697
Posted By sch

My standing is limited to crotch rest when...

My standing is limited to crotch rest when needed, mostly not but some rides more than others. Standing does a number on my
quads and since revising my two road bikes gearing, one with 34/32 low...
10-09-20, 08:56 PM
Replies: 14
Views: 650
Posted By sch

To reiterate, the etube software has to be...

To reiterate, the etube software has to be "disconnected" in software as well as hardware and in the
proper way or the system will not function. On the one occasion my LBS, who does tandem refits...
10-03-20, 08:13 AM
Replies: 5
Views: 383
Posted By sch

Might help to know which Di2 RD you have so the...

Might help to know which Di2 RD you have so the ref to the bolt is easier to find. Also 'bolt broken' : does that
mean the bolt snapped off, or screw head not drivable with standard tool or...
09-23-20, 09:01 AM
Replies: 5
Views: 444
Posted By sch

My 11-32 cassette also makes different noises...

My 11-32 cassette also makes different noises when up or down shifting at different places in the cassette on
my Di2 bike. How much torque is on the system also alters the noise level. Some shifts...
09-19-20, 03:08 PM
Replies: 9
Views: 515
Posted By sch

Since the front wheel is the usual reference...

Since the front wheel is the usual reference point for handlebar alignment, I would think the bars are more
likely to be off. If the wheel is ok in the fork it will point in the same direction if...
09-19-20, 01:32 PM
Replies: 25
Views: 1,344
Posted By sch

Most commonly available acids will remove rust....

Most commonly available acids will remove rust. Cola is a dilute phosphoric acid solution and may create some iron phosphate
but this is not likely to last in chain use. Main problem is you must...
08-29-20, 04:01 PM
Replies: 10
Views: 480
Posted By sch

The HG 800 and HG 700 (nearly the same Ultegra vs...

The HG 800 and HG 700 (nearly the same Ultegra vs 105) are oddities in that they are 11 spd cassettes designed
to fit on 8-9-10 speed freehubs. They are shipped with the spacer needed if used on an...
08-19-20, 12:15 PM
Replies: 17
Views: 511
Posted By sch

Absent a bike DIY or CO-OP one source for cheap...

Absent a bike DIY or CO-OP one source for cheap apparently quality wheels is...
08-04-20, 04:03 PM
Replies: 11
Views: 566
Posted By sch

Frame pictured "may" have 26 TPI threading in the...

Frame pictured "may" have 26 TPI threading in the RD hanger, ok for vintage Campy but slightly off for
the otherwise standard 10Mx1.0mm which is now the world wide standard. Probably makes little...
08-02-20, 09:40 PM
Replies: 23
Views: 1,565
Posted By sch

Tailights are bad enough, the superbright...

Tailights are bad enough, the superbright headlights are even worse in steady mode and horrible in flash mode.
07-22-20, 01:57 PM
Replies: 16
Views: 618
Posted By sch

If the BB shell has no obvious damage and the...

If the BB shell has no obvious damage and the insert has remained in place since the glue job, there should be no concern
about the frame integrity. If the shell comes loose again then a good clean...
07-20-20, 08:09 AM
Replies: 12
Views: 1,017
Posted By sch

If the rim is looking like a potato chip or...

If the rim is looking like a potato chip or pringles chip, then it can frequently be straightened by taking it off the bike
and putting the low points (always at 180 points on the rim) on short...
07-19-20, 01:42 PM
Replies: 8
Views: 485
Posted By sch

As per Clifford: full length housing either...

As per Clifford: full length housing either externally ziptied to the top tube or by cautious enlargement, if needed, of the
top tube openings to allow full length housing to be routed internally. ...
07-13-20, 09:30 AM
Replies: 23
Views: 1,703
Posted By sch

Easiest way to assess hydration is unclothed...

Easiest way to assess hydration is unclothed before and after ride weight. Even in winter I will lose 2-3# weight on a
40-50 mile ride. In the summer 3# is minimum and have lost upto 5#, that is at...
07-09-20, 07:13 PM
Replies: 5
Views: 386
Posted By sch

Sometimes 'gritty' is really just too tight. So...

Sometimes 'gritty' is really just too tight. So yes, clean meticulously, examine races on hub and cone, replace the
balls and then find out the minor frustration of final adjustment of the bearing...
06-23-20, 10:31 AM
Replies: 32
Views: 3,172
Posted By sch

Torque wrench should not be necessary. Pedals...

Torque wrench should not be necessary. Pedals need either an allen wrench (could be 6 or 8mm) or they will have
a flat for a wrench. Wrench will need to have jaws less than ~1/4" wide to work...
06-20-20, 03:27 PM
Replies: 10
Views: 1,949
Posted By sch

This is where you read the referenced...

This is where you read the referenced instructions at least 3 times while looking at the mechanism on the bike. Looking
at several videos on youtube is also helpful. There was a thread a month or so...
06-19-20, 08:47 AM
Replies: 13
Views: 1,990
Posted By sch

Although the Shimano joining pin works, it is a...

Although the Shimano joining pin works, it is a kludge. Quick link is a better approach.
One example: ...
06-17-20, 09:06 PM
Replies: 12
Views: 1,047
Posted By sch

As to cones, my first good bike was a Peugeot...

As to cones, my first good bike was a Peugeot PX10, everything was Fr threaded. I was not impressed by the Normandy
cones or axles (mine were QR, so hollow) which bent early at the tips and one...
06-03-20, 07:31 AM
Replies: 87
Views: 3,595
Posted By sch

This is something best practiced AT HOME with the...

This is something best practiced AT HOME with the tools you would have with you on the bike. Some wheels
are easy to remove from the frame and some are not, but more importantly some tire/wheel...
06-02-20, 05:01 PM
Replies: 6
Views: 327
Posted By sch

Not enough slack in brake housing/cable in the...

Not enough slack in brake housing/cable in the bar area? Is by chance, the housing continuous from the
brifter to the brake? Not unusual for the rear brake to actuate when the bar is turned too far...
05-23-20, 09:40 PM
Replies: 18
Views: 1,153
Posted By sch

Perhaps, but I really studied the Shimano tech...

Perhaps, but I really studied the Shimano tech lit and took the install down 3x and redid it and had a real bike mechanic check
the work with no change........ The brifters are 7000 series as well.
05-23-20, 08:17 AM
Replies: 18
Views: 1,153
Posted By sch

A comment on my experience with the similar R7000...

A comment on my experience with the similar R7000 FD. I was really surprised by the increase in shifting effort
needed by the R7000 over the previous 6503 triple it replaced. Since my L hand has...
05-17-20, 01:38 PM
Replies: 6
Views: 825
Posted By sch

Yes, the occasional availability (formerly,...

Yes, the occasional availability (formerly, haven't checked since the 8050s came out) of 11 spd Di2 FD/RD for under $300 and then a $60
cassette, the significant increase in gear range has its...
05-15-20, 12:24 PM
Replies: 6
Views: 825
Posted By sch

I have had no problems with first the 6770, then...

I have had no problems with first the 6770, then the 6870 FD shifting on an Ultegra 6800 or 105 5800 series 50/34 chainsets.
Are there any spacers on the drive side of the BB or inside the CW on the...
05-14-20, 01:56 PM
Replies: 16
Views: 729
Posted By sch

Sy Reene: Oil distilled from select infant...

Sy Reene: Oil distilled from select infant sperm whales......:deadhorse:
05-14-20, 06:25 AM
Replies: 8
Views: 372
Posted By sch

Although no special tool was needed, my last...

Although no special tool was needed, my last adventure with an R7000 FD was frustrating to say the least. Cable
routing is a bit bizarre and even with 3 redos the shifter effort is higher than it...
05-13-20, 07:57 AM
Replies: 8
Views: 372
Posted By sch

No such tool needed. FD is bolted to the bike...

No such tool needed. FD is bolted to the bike and in bolting you adjust for height relative to the large
chainwheel and angle as well. Once these are set the mounting bolts are tightened. Then...
05-05-20, 01:31 PM
Replies: 29
Views: 2,686
Posted By sch

Shimano has drifted pretty far into the...

Shimano has drifted pretty far into the proprietary CW direction first with molded 5 screw CW and now with molded
4 screw CW. Replacement CW are costly enough that it makes sense just to buy a new...
04-14-20, 04:11 PM
Replies: 2
Views: 199
Posted By sch

Shimano is 10x1.0M. Many moons ago Campy liked...

Shimano is 10x1.0M. Many moons ago Campy liked 10Mx26tpi threading on their rear axles which worked with
thin 10x1.0 axle nuts but a bit tight on wider axle nuts. Peugeot also used 10Mx26tpi on...
04-09-20, 01:13 PM
Replies: 6
Views: 394
Posted By sch

Pull the cable out to check for frayed strands,...

Pull the cable out to check for frayed strands, another common cause of brifter malfunction as the cable wrap is pretty tight around a small radius
within the brifter.
04-01-20, 09:03 AM
Replies: 18
Views: 948
Posted By sch

What I see is not corrosion but unremoved...

What I see is not corrosion but unremoved dirt/grease from an incomplete cleaning. Some mechanical addition to the
cleaning process should remove this innocuous residual. Or an ultrasonic cleaning...
02-24-20, 09:43 AM
Replies: 14
Views: 970
Posted By sch

My Park chain cleaner is ~15+ yrs old. I use...

My Park chain cleaner is ~15+ yrs old. I use simple green undiluted twice, and then a third chain run through
with simple green 50% in water. Then water rinses until the water that is left in the...
02-06-20, 08:39 AM
Replies: 9
Views: 705
Posted By sch

Excess oil would have dribbled out by now and the...

Excess oil would have dribbled out by now and the movement of the balls will distribute the grease around.
Nothing to worry about.
Showing results 1 to 50 of 64
 


 
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