Go Back  Bike Forums > Search Forums
Reload this Page >

Search Results

Notices
 
Search: Posts Made By: mpetry912
Showing results 1 to 50 of 433
Search took 0.03 seconds.
01-01-20, 08:05 PM
Replies: 172
Views: 16,000
Posted By mpetry912

first ride of the decade on a white bike ! ...

first ride of the decade on a white bike !

Mark Petry
Bainbridge Island, WA USA
...
01-01-20, 04:54 PM
Replies: 171
Views: 9,659
Posted By mpetry912

great thread. Has anybody thought about the...

great thread. Has anybody thought about the possibility of a repair "co-op" with a membership model ? Like $50 to join and $3/hour for access to repair stand and basic tools ? in addition to...
01-01-20, 04:50 PM
Replies: 8
Views: 270
Posted By mpetry912

history drips from that place ! really the dawn...

history drips from that place ! really the dawn of the modern computer industry.

there's a story about Allen Turing riding his bike to Bletchley Park and noticing the chain skipped because a bent...
12-31-19, 01:12 PM
Replies: 11
Views: 444
Posted By mpetry912

do you have one or more bikes that fit you well...

do you have one or more bikes that fit you well today ? Usually that is a good guide.

Measure the center of the BB to top of saddle at the projected seat post, and from that point to center of...
12-30-19, 08:26 AM
Replies: 16,073
Views: 1,667,907
Posted By mpetry912

The strand is a great ride in the mid winter...

The strand is a great ride in the mid winter sun. I try to get down here every Xmas week and ride every day. Usually the weather is good.

About as flat and straight as it's possible to get...
12-29-19, 09:32 PM
Replies: 16,073
Views: 1,667,907
Posted By mpetry912

My ride today. 5 days in San Diego, returning...

My ride today. 5 days in San Diego, returning home tomorrow

doesn't get any better

hope you are OK Jeff !

Mark Petry
Coronado Island, CA
...
12-29-19, 08:56 PM
Replies: 41
Views: 1,809
Posted By mpetry912

tool box organization is a very personal thing ! ...

tool box organization is a very personal thing ! my top box is a fishing tackle type box with fold out trays. I have 1/4 and 3/8 socket rails so it's possible to tell at a glance when something is...
12-29-19, 08:22 PM
Replies: 136
Views: 6,364
Posted By mpetry912

these earlier internationals are really fine...

these earlier internationals are really fine frames. they have some crazy thin chainstays so be careful re-spacing them.

I think an International is a great entry point to the vintage bike...
12-26-19, 05:37 PM
Replies: 53
Views: 2,098
Posted By mpetry912

I thought about this today as I assembled my...

I thought about this today as I assembled my Ritchey travel bike for it's annual winter outing in San Diego where the sun is shining and the riding is great.

The Break Away design requires...
12-24-19, 01:15 PM
Replies: 37
Views: 1,985
Posted By mpetry912

you can see it right there ! It's a plastic plug...

you can see it right there ! It's a plastic plug for the rack tube ! there's another one stuck in the rack tube (arrow)

or is the plug too small for that ?

Mark Petry
Coronado Island, CA
...
12-24-19, 01:00 PM
Replies: 30
Views: 7,494
Posted By mpetry912

The problem with drilling the rear brake bridge,...

The problem with drilling the rear brake bridge, other than very limited clearance as has been pointed out above, is that many bikes just have a piece of tube with no "boss" for the brake bolt.
...
12-24-19, 12:54 PM
Replies: 18
Views: 1,238
Posted By mpetry912

Alright, so I agree on the low rider thing - esp....

Alright, so I agree on the low rider thing - esp. positioning the load so it is neutral to the fork axis of rotation.

is there a rule or formula for the ideal trail measurement when a front bag /...
12-23-19, 10:08 PM
Replies: 18
Views: 1,238
Posted By mpetry912

This is a really good question.i Bikes that...

This is a really good question.i

Bikes that were built with a handlebar bag in mind seem to have pretty neutral response to loading. Having said that, I'd suggest that lightweight stuff (jacket,...
12-23-19, 04:02 PM
Replies: 3
Views: 323
Posted By mpetry912

these parts are all over ebay. Looks like FSA...

these parts are all over ebay. Looks like FSA makes a nice one.
...
12-23-19, 03:55 PM
Replies: 53
Views: 2,098
Posted By mpetry912

Well I haven't yet. was that agent qualified to...

Well I haven't yet. was that agent qualified to fly anything besides his desk ? "hahahhaha"

there was another one that said in twin engine airplanes, the 2nd engine was there to get you to the...
12-23-19, 01:28 PM
Replies: 53
Views: 2,098
Posted By mpetry912

Your pilots didn't wiggle the ejector racks,...

Your pilots didn't wiggle the ejector racks, stick their head in the intakes and the main gear wells, and check the slat deployment (on the TA-4 this was very important! Assymentric slat deployment...
12-23-19, 09:26 AM
Replies: 5
Views: 307
Posted By mpetry912

Andrew has answered my question, thanks all. the...

Andrew has answered my question, thanks all. the freehub is just retained in the hube body by an o-ring.

End caps are press-on, axle not threaded. once it's clamped in the drop out it's all...
12-22-19, 10:10 PM
Replies: 5
Views: 307
Posted By mpetry912

it's not sealed (cartridge) bearing. but amazed...

it's not sealed (cartridge) bearing. but amazed that the freehub would just come off the hub body.

Mark Petry
Bainbridge Island, WA
12-22-19, 08:58 PM
Replies: 5
Views: 307
Posted By mpetry912

Cassette / freehub

I have a Bontrager hub on my travel bike, it is a shimano compatible 10 / 11 speed hub.

I was pretty astounded to find that when not clamped in the frame, the cassette / freehub will just slide...
12-22-19, 08:53 PM
Replies: 10
Views: 722
Posted By mpetry912

Drop outs look OK to me. They are steel or...

Drop outs look OK to me. They are steel or possibly aluminum. don't worry about them. Put it all right and ride / enjoy.

Mark Petry
Bainbridge Island, WA
12-22-19, 11:05 AM
Replies: 6
Views: 928
Posted By mpetry912

Weapon ambush, huh ? and you have to give it a...

Weapon ambush, huh ? and you have to give it a whack to make it work. Reminds me of a story. But Andrew is right, there's something binding in there that is preventing the pawls from engaging.
...
12-21-19, 01:09 PM
Replies: 8
Views: 652
Posted By mpetry912

here's a vid that may be useful. Maybe a little...

here's a vid that may be useful. Maybe a little later version than yours but close.

https://www.youtube.com/watch?v=naFM8TT3MxY

just disassemble and remove the shifting parts. EZ !

Mark...
12-19-19, 02:09 PM
Replies: 45
Views: 2,365
Posted By mpetry912

here's a pic of an actual "team issue" Team Champ...

here's a pic of an actual "team issue" Team Champ from 73. The OP's bike may be a couple years earlier. The TCs were made by Henri Depierre at Cycles Gemini in Paris and they are pretty special...
12-18-19, 08:20 PM
Replies: 16
Views: 681
Posted By mpetry912

No, wait, clamping the skewer can "bow" the axle...

No, wait, clamping the skewer can "bow" the axle and cause bearings to be too tite.

with conventional cone and cup hubs - you want a tiny bit of play - and then the slack is taken up when you...
12-18-19, 08:26 AM
Replies: 26
Views: 4,028
Posted By mpetry912

these are awesome pedals, maybe the best ever. ...

these are awesome pedals, maybe the best ever. There was a grease injector that fit the zerk on the end cap. Do you really need to open them up ? Maybe just shoot more grease in there and purge...
12-18-19, 08:18 AM
Replies: 43
Views: 5,159
Posted By mpetry912

These tools measure spoke tension indirectly from...

These tools measure spoke tension indirectly from the spokes deflection over a known distance when the spring force is applied.

The spoke guage can have a large impact on your readings. The same...
12-18-19, 07:10 AM
Replies: 45
Views: 1,593
Posted By mpetry912

I was talking to a good friend yesterday who is...

I was talking to a good friend yesterday who is an authority on the topic of bike wheels and rims.

He mentioned this very thing ! Specifically in the earlier HED rims. Said it usually was caused...
12-18-19, 07:08 AM
Replies: 53
Views: 2,098
Posted By mpetry912

not much I can add to the above but those are...

not much I can add to the above but those are excellent lists. A pilot always does a walk around check before take off.

One of the things I do is lock the brakes and wiggle the bike back and...
12-17-19, 11:57 AM
Replies: 43
Views: 5,159
Posted By mpetry912

this is not a bad way to go. If all spokes are...

this is not a bad way to go. If all spokes are equally tightened the rim "SHOULD" be perfectly round assuming all spokes are the same length (sometimes they are not but that's another discussion) ...
12-17-19, 08:14 AM
Replies: 43
Views: 5,159
Posted By mpetry912

I still think you are asking the wrong question...

I still think you are asking the wrong question here and following an unknown / uncalibrated "tension guage" will lead you further down the wrong path.

The right tension for a given wheel is...
12-16-19, 07:36 PM
Replies: 9
Views: 389
Posted By mpetry912

check that you have the right number of balls and...

check that you have the right number of balls and correct size.

In the hub.

one missing ball can behave like that

Mark Petry
Bainbridge Island, WA USA
12-16-19, 11:30 AM
Replies: 21
Views: 996
Posted By mpetry912

yes, I agree with your analysis. Most likely...

yes, I agree with your analysis. Most likely cause is that the builder mixed and matched spokes of the same length, just pulling them randomly from the bin.

Not sure how to advise you here. Is the...
12-16-19, 08:34 AM
Replies: 21
Views: 996
Posted By mpetry912

did you buy the spokes in a manufacturer box ? ...

did you buy the spokes in a manufacturer box ? "In theory" if you have a box of 100 spokes, they "should" have come out of the machine sequentially, drawn from the same batch of wire.

if you...
12-05-19, 08:40 AM
Replies: 150
Views: 17,178
Posted By mpetry912

if he did run directly into something, the crease...

if he did run directly into something, the crease in the downtube that you mention is to be expected. However, the tube(s) should bend, not just pop apart cleanly like that. What I can see from the...
12-03-19, 05:34 PM
Replies: 24
Views: 636
Posted By mpetry912

yes, that is probably the same stuff. Any...

yes, that is probably the same stuff. Any molybdenum disulfide grease with an "EP" rating will be an excellent grease for headsets.

Now, don't bust my chops 'cuz I mis-spelled it. I got my...
12-03-19, 02:05 PM
Replies: 24
Views: 636
Posted By mpetry912

I agree, why has nobody resurrected this design ?...

I agree, why has nobody resurrected this design ? It is simple, I think cheep to manufacture (no precision grinding / hardening) and super durable.

maybe that's the problem ? Anyway, get 'em while...
12-03-19, 12:16 PM
Replies: 31
Views: 1,114
Posted By mpetry912

In gunsmithing I've used a boresight laser gizmo...

In gunsmithing I've used a boresight laser gizmo for scope alignment on the bench. It works pretty well.

I wonder if a laser could be "boresight mounted" inside the steerer tube and then a target...
12-03-19, 11:00 AM
Replies: 24
Views: 636
Posted By mpetry912

oh gosh, don't let the "tapered vs cylindrical"...

oh gosh, don't let the "tapered vs cylindrical" discussion put you off these - as John said above, given how the bearings are loaded and the low rotational speeds, these A9s (and the related Miche...
12-03-19, 04:59 AM
Replies: 24
Views: 636
Posted By mpetry912

I have these A9s installed on most of my vintage...

I have these A9s installed on most of my vintage bikes, however I'm running the lower unit only. Upper bearing is usually Campy.

The stronglight top nut and cup are alloy and pretty easy to round...
12-02-19, 07:57 PM
Replies: 7
Views: 467
Posted By mpetry912

yes, it absolute can be the bearings vibrating, ...

yes, it absolute can be the bearings vibrating, By all means check that first and eliminate it as a potential cause to eliminate further specuation.

Even a small amount of play can account for...
12-02-19, 02:31 PM
Replies: 24
Views: 636
Posted By mpetry912

these are phenomenally durable headsets. the...

these are phenomenally durable headsets. the two metal "plates" function as cones. I do put some grease on both sides of them. then just clean the rollers and re-install.

parts are available...
12-02-19, 10:15 AM
Replies: 15
Views: 603
Posted By mpetry912

I did not (personally) have good luck with...

I did not (personally) have good luck with MaxiCar hubs and the French freewheel threading would put me off them for sure - except maybe on a display bike. They do have some interesting features and...
12-02-19, 09:15 AM
Replies: 26
Views: 1,334
Posted By mpetry912

Any tool thread is a great thread. Much as I like...

Any tool thread is a great thread. Much as I like the Knipex pliers, I would not use them routinely as a substitute for a wrench. The eventual result will be rounded bolt heads.

The little plastic...
12-01-19, 07:10 PM
Replies: 43
Views: 2,290
Posted By mpetry912

I'm with Andrew the external bearings, while they...

I'm with Andrew the external bearings, while they brace the BB spindle better, seem to have a shorter life.

It may be because they are not as well protected, particularly from front wheel splash...
12-01-19, 04:54 PM
Replies: 4
Views: 433
Posted By mpetry912

again, based on what you've shared, I doubt this...

again, based on what you've shared, I doubt this is a derailleur problem. There is something weird about either the housing or how it's routed.

I think you need to un tape the bars. Look at how...
12-01-19, 01:25 PM
Replies: 4
Views: 433
Posted By mpetry912

to the extent I can understand from your "problem...

to the extent I can understand from your "problem statement" there's some kind of misalignment of the housing where it enters the "brifter" housing.

I cannot think of any fix that does not have...
12-01-19, 01:11 PM
Replies: 3
Views: 1,028
Posted By mpetry912

Right. The "Big/Big" and "Small / Small"...

Right. The "Big/Big" and "Small / Small" combinations are the extremes of chain tension and slack, as well as chain angle. This is particularly true of bikes with short chainstays.

Other gear...
11-30-19, 11:56 AM
Replies: 26
Views: 943
Posted By mpetry912

yep, just get a new crankset and a couple ebay...

yep, just get a new crankset and a couple ebay adapters, and you're "good to go"

sorry. I don't mean to be dismissive. If it was all square taper old school stuff, I'd take this on in a minute....
11-30-19, 11:33 AM
Replies: 26
Views: 943
Posted By mpetry912

the point is, he bought a bike, and ended up with...

the point is, he bought a bike, and ended up with a systems integration project.

one could spend months and lots of $$$ shotgunning "adapters" in seach of a solution, and he hasn't even got to...
11-30-19, 10:32 AM
Replies: 26
Views: 943
Posted By mpetry912

Seems like a lot of work to get back to a...

Seems like a lot of work to get back to a rideable bike which is what you thought you bought. A warranty replacement 1X11 frame will bring, what, 200 bucks on CL if you're lucky.

you could spend...
Showing results 1 to 50 of 433
 


 
Forum Jump

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.