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Search: Posts Made By: mpetry912
Showing results 1 to 50 of 1000
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Forum: Classic & Vintage
04-26-24, 01:06 PM
Replies: 11
Views: 319
Posted By mpetry912

that's a real neat part, I especially like the...

that's a real neat part, I especially like the colleted upper nut that compresses as you tighten it.

that said, I would not install that on a bike I was going to ride. No spare parts available and...
Forum: Classic & Vintage
04-26-24, 12:08 PM
Replies: 30
Views: 689
Posted By mpetry912

I would suggest to you that 300 inch / lb is too...

I would suggest to you that 300 inch / lb is too much torque for Campy cranks. I believe you are at risk of splitting the arms at that torque level.

Campy arms are quite soft and just blindly...
Forum: Classic & Vintage
04-26-24, 11:46 AM
Replies: 7
Views: 132
Posted By mpetry912

who makes this one ? haha /markp ...

who makes this one ? haha

/markp
https://cimg8.ibsrv.net/gimg/bikeforums.net-vbulletin/646x764/silca_cage_rainbow_b4399408d9e2683a28f8135adbd8b81749a9ecde.jpg
Forum: General Cycling Discussion
04-24-24, 03:34 PM
Replies: 28
Views: 777
Posted By mpetry912

Agreed. Same discussion with riders who insist...

Agreed. Same discussion with riders who insist that their wheels are tensioned to 140KgF. Why ? Because they saw it in a GCN video on YouTube.

If you want to run equipment that is super...
Forum: General Cycling Discussion
04-24-24, 03:30 PM
Replies: 6
Views: 207
Posted By mpetry912

I think maybe you bought a size too small ? or...

I think maybe you bought a size too small ? or the heel tab is just too tall ?

that said, the Shimano shoes have gotten narrower over the last few years. The latest pair I bought was just too...
Forum: Bicycle Mechanics
04-24-24, 01:03 PM
Replies: 23
Views: 376
Posted By mpetry912

Mine /markp ...

Mine

/markp

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulletin/747x516/912toolkit1_d409d3b1196dc33f8cb12875970ede3e5f52b098.jpg
Forum: Bicycle Mechanics
04-24-24, 08:59 AM
Replies: 38
Views: 714
Posted By mpetry912

I looked at the pics and I see several things but...

I looked at the pics and I see several things but this is the big problem. Either the brake posts are assymetric (unlikely) or you have something else set up wrong on the brakes. I disagree with your...
Forum: General Cycling Discussion
04-22-24, 08:31 AM
Replies: 28
Views: 703
Posted By mpetry912

that's the one with the single leg fork ! never...

that's the one with the single leg fork ! never looked right to me.

too much bending moment on the front axle.

/markp
Forum: Classic & Vintage
04-21-24, 06:51 PM
Replies: 29
Views: 1,007
Posted By mpetry912

maybe a 35 Rear and 32 front? larger frames...

maybe a 35 Rear and 32 front?

larger frames tend to have more of the weight distribution on the rear wheel.

yes, very nice bike

/markp
Forum: Bicycle Mechanics
04-21-24, 02:03 PM
Replies: 35
Views: 870
Posted By mpetry912

suggest you use LESS pressure - just a few PSI -...

suggest you use LESS pressure - just a few PSI - when installing.

these tubes are quite stretchy

/markp
Forum: Bicycle Mechanics
04-21-24, 01:44 PM
Replies: 17
Views: 456
Posted By mpetry912

here's what I'd do. draw a line with a sharpie to...

here's what I'd do. draw a line with a sharpie to indicate the post's height that you want

take it out

below the line, use your automatic center punch (or heck even a regular punch with a...
Forum: Bicycle Mechanics
04-21-24, 10:37 AM
Replies: 30
Views: 1,232
Posted By mpetry912

hey sweeks, thanks buddy, some real information...

hey sweeks, thanks buddy, some real information as opposed to speculation, appreciate it !

Mtracer am I to understand that that the link that failed was immediately adjacent to the removeable...
Forum: Classic & Vintage
04-20-24, 05:01 PM
Replies: 14
Views: 395
Posted By mpetry912

get a longer bolt and use that to squeeze the...

get a longer bolt and use that to squeeze the ears of the bracket together

then re-install the original if you can make it fit

I do not care for this type of clamp.

you might line the inside...
Forum: Classic & Vintage
04-20-24, 04:50 PM
Replies: 24
Views: 729
Posted By mpetry912

way better than when it left St. Etienne ...

way better than when it left St. Etienne

/markp
Forum: Bicycle Mechanics
04-20-24, 04:49 PM
Replies: 20
Views: 414
Posted By mpetry912

just run the chain across your fingers, you may...

just run the chain across your fingers, you may feel a popped link

almost now way to fix it. are 10 speed cassettes and chains still available at reasonable prices ?

probably need to replace...
Forum: Classic & Vintage
04-20-24, 09:54 AM
Replies: 24
Views: 729
Posted By mpetry912

very nice with many cool details. Ernest Csuka...

very nice with many cool details. Ernest Csuka would nod in approval.

/markp

https://cimg9.ibsrv.net/gimg/bikeforums.net-vbulletin/1276x957/singer22_eb74e445a3bc1d764dfb01bcda877933c6638a95.jpg
Forum: Classic & Vintage
04-16-24, 01:46 PM
Replies: 16
Views: 647
Posted By mpetry912

the great Jon Williams RIP (aka Drillium) had an...

the great Jon Williams RIP (aka Drillium) had an anodizing shop in Medford OR that he "trained up" to closely replicate the silver gray of Campy components.

I have a set of his lightly machined...
Forum: Bicycle Mechanics
04-16-24, 09:47 AM
Replies: 10
Views: 465
Posted By mpetry912

spray some boeshield or WD40 in there beforehand...

spray some boeshield or WD40 in there beforehand ?

and grease or anti seize on the bolt threads

/markp
Forum: Bicycle Mechanics
04-16-24, 08:06 AM
Replies: 30
Views: 1,232
Posted By mpetry912

you got acceptable life out that chain at 4000...

you got acceptable life out that chain at 4000 miles.

Do you monitor chain wear with the Shimano guage ? a worn chain will wear out the cassette

ONCE in my cycling career I had a chain do this....
Forum: Classic & Vintage
04-15-24, 03:24 PM
Replies: 17
Views: 450
Posted By mpetry912

Jim Cunninham at Cycle Art used graphic design...

Jim Cunninham at Cycle Art used graphic design tools on a Mac to create repop decals, this was a key part of his business starting up in the mid-90s.

Can start with a scan of an existing decal or...
Forum: General Cycling Discussion
04-15-24, 12:23 PM
Replies: 30
Views: 1,130
Posted By mpetry912

now I use 80 PSI on most road bike tires (28s)...

now I use 80 PSI on most road bike tires (28s) maybe a little less on hot days.

there's no single right answer, and more info is often confusing to people who are relatively new to the sport
...
Forum: Classic & Vintage
04-14-24, 02:34 PM
Replies: 48
Views: 1,511
Posted By mpetry912

also you want to look closely at the place where...

also you want to look closely at the place where the head tube and downtube join - looks for any signs of paint cracking or flaking off - this is almost certainly signs of crash damage.

is the...
Forum: Bicycle Mechanics
04-14-24, 11:41 AM
Replies: 33
Views: 1,085
Posted By mpetry912

I'm with squirtdad above. consider if you...

I'm with squirtdad above. consider if you really want to put the time and effort into this bike

look at your local Craigslist and see what you can find for $250. Find somebody who can help you...
Forum: Bicycle Mechanics
04-14-24, 11:38 AM
Replies: 13
Views: 432
Posted By mpetry912

I do not regard any statements about bottom...

I do not regard any statements about bottom bracket sizing seen on "a website" to be anything more than a starting point.

and I've never had a chainline problem, but I use Phil BBs on most of my...
Forum: Bicycle Mechanics
04-14-24, 09:42 AM
Replies: 21
Views: 762
Posted By mpetry912

the other thing I noticed from the "very helpful"...

the other thing I noticed from the "very helpful" pic was that the FD cage is dragging against / being restricted by the pants guard ?

am I seeing that right ?

/markp
Forum: Bicycle Mechanics
04-14-24, 09:20 AM
Replies: 13
Views: 432
Posted By mpetry912

Look over the freewheel cogs toward the...

Look over the freewheel cogs toward the chainrings - ideally the middle cog on the freewheel will like up with the middle chainring, in plane.

this is the "gun site method"

there are other ways...
Forum: Bicycle Mechanics
04-14-24, 09:16 AM
Replies: 33
Views: 1,085
Posted By mpetry912

remember the front brake does about 70% of the...

remember the front brake does about 70% of the stopping effort so if you can't find a full set of brakes, just a pair, installed on the front, will help. And you might look for levers too, bikes at...
Forum: General Cycling Discussion
04-14-24, 08:55 AM
Replies: 5
Views: 278
Posted By mpetry912

agreed mostly with the above. Questions like...

agreed mostly with the above. Questions like "will X work with Y" where X and Y come from different manufacturers, and maybe even generations of components, are very difficult to answer with the...
Forum: Electric Bikes
04-13-24, 10:01 AM
Replies: 19
Views: 788
Posted By mpetry912

yes, I still ride (and enjoy) the lightweight...

yes, I still ride (and enjoy) the lightweight bike. The ebike is great for a trip to the grocery store or riding in less than great weather.

/markp
Forum: Electric Bikes
04-13-24, 09:58 AM
Replies: 13
Views: 943
Posted By mpetry912

it's all about budget. an ebike in the 1500...

it's all about budget. an ebike in the 1500 range is about the bare minimum sorry to say. The "best cheap" off AMZN will just disappoint you.

The Gazelle as mentioned, or the Tern in various...
Forum: Classic & Vintage
04-13-24, 08:42 AM
Replies: 9
Views: 779
Posted By mpetry912

don't think the tubing brand has much to do with...

don't think the tubing brand has much to do with it. the builder just cuts the top of the stay on a diagonal or chamfer and then forms it over.

very simple and does not have the extra weight of...
Forum: Bicycle Mechanics
04-11-24, 02:32 PM
Replies: 23
Views: 500
Posted By mpetry912

trash them on FB and maybe they will send you a...

trash them on FB and maybe they will send you a new one !

not worth worrying about in my opinion

/markp
Forum: General Cycling Discussion
04-11-24, 12:22 PM
Replies: 33
Views: 1,241
Posted By mpetry912

where you live may be a consideration not...

where you live may be a consideration not mentioned. Where I live in the Pac NW, we get many days that are partly cloudy and really dark sunglasses are too dark, especially riding in and out of...
Forum: Bicycle Mechanics
04-09-24, 08:59 AM
Replies: 13
Views: 319
Posted By mpetry912

as FBinNY says above, a 90 degree angle is a good...

as FBinNY says above, a 90 degree angle is a good place to start.

if you need more brake authority or are dealing with something that limits cable pull (like a rear brake on a small frame) then...
Forum: Bicycle Mechanics
04-06-24, 11:20 AM
Replies: 24
Views: 773
Posted By mpetry912

the thing about 12 speed - that is different than...

the thing about 12 speed - that is different than a 6 speed garage sale bike - is that every part of the drivetrain has to be in very good condition.

percieved performance - be it reliable...
Forum: Classic & Vintage
04-06-24, 09:57 AM
Replies: 13
Views: 467
Posted By mpetry912

I've ridden phil hubs and BBs for my whole...

I've ridden phil hubs and BBs for my whole cycling career, have them on many of my past and present bikes.

never had a single problem with any of them. However I never rode one of these very early...
Forum: Classic & Vintage
04-05-24, 01:05 PM
Replies: 13
Views: 467
Posted By mpetry912

unworthy1 that Phil BB you show is a very early...

unworthy1 that Phil BB you show is a very early one. That version had a spindle welded in the middle. they failed.

had not seen one of those for years.

Based on your pic, I will allow that the...
Forum: Classic & Vintage
04-04-24, 08:13 PM
Replies: 13
Views: 467
Posted By mpetry912

no, it is not a Phil. I think it is a shimano...

no, it is not a Phil. I think it is a shimano knock off with the threaded collars removed

if there are no cups, how does it mount in the frame ? one wonders

/markp
Forum: Bicycle Mechanics
04-01-24, 12:52 PM
Replies: 14
Views: 425
Posted By mpetry912

agree on the above - by all means reverse the...

agree on the above - by all means reverse the chain and see if that helps.

Also if your bike is a 1 by (Single chainring) there is a possibility that the narrow / wide teeth are not clocked...
Forum: Bicycle Mechanics
04-01-24, 12:42 PM
Replies: 9
Views: 317
Posted By mpetry912

Many of the Shimano chains now come with quick...

Many of the Shimano chains now come with quick links and I have found Shimano's quick links to be very reliable.

I would not, repeat not, "press in a new pin". Have seen that fail a number of...
Forum: Bicycle Mechanics
03-31-24, 10:05 AM
Replies: 31
Views: 1,025
Posted By mpetry912

if that nipple shot is typical and you have a...

if that nipple shot is typical and you have a spoke tension of 120 KgF I think you might see some nipple failures.

as Andy said above probably 1 or 2mm short. see pic below.

What you might do...
Forum: General Cycling Discussion
03-30-24, 09:18 PM
Replies: 57
Views: 2,462
Posted By mpetry912

Garmin Varia don't knock it if you ain't...

Garmin Varia

don't knock it if you ain't tried it

/markp
Forum: General Cycling Discussion
03-30-24, 04:49 PM
Replies: 32
Views: 1,217
Posted By mpetry912

definitely replace. it will fail at the worst...

definitely replace. it will fail at the worst possible moment.

"best cheap"

/markp
Forum: Classic & Vintage
03-30-24, 03:07 PM
Replies: 59
Views: 2,912
Posted By mpetry912

really enjoyed this thread. Some great stuff...

really enjoyed this thread. Some great stuff that they don't make any more. One of my faves that was not mentioned was these TA Carmina cranks. In my opinion the best square taper cranks ever...
Forum: Bicycle Mechanics
03-30-24, 10:00 AM
Replies: 14
Views: 459
Posted By mpetry912

yup, something got bent. just replace it, trying...

yup, something got bent. just replace it, trying to repair will only lead to frustration.

/markp
Forum: Bicycle Mechanics
03-27-24, 08:15 PM
Replies: 10
Views: 290
Posted By mpetry912

try popping the seal off and shoot in new grease....

try popping the seal off and shoot in new grease.

clean everything first and re-lube / re-assemble

ride and enjoy

/markp
Forum: Bicycle Mechanics
03-27-24, 08:13 PM
Replies: 12
Views: 353
Posted By mpetry912

I have replaced individual worn cogs in a...

I have replaced individual worn cogs in a cassette but have not crossed brands.

if you can get it to shift acceptably, great.

/markp
Forum: Electric Bikes
03-27-24, 09:47 AM
Replies: 8
Views: 419
Posted By mpetry912

I also have the swiss stop ebike pads and they...

I also have the swiss stop ebike pads and they are fine, they do howl a bit on the very first stop of the day, as did the Hawk pads used in the race car.

probably a bit harder / semi metallic...
Forum: Electric Bikes
03-27-24, 09:45 AM
Replies: 13
Views: 684
Posted By mpetry912

there is a Porsche Taycan Turbo which is an...

there is a Porsche Taycan Turbo which is an electric car

but yes it's been misappropriated as a marketing term

I may have one of those Vado "chainguards" which goes on the crank spider.
...
Forum: Bicycle Mechanics
03-27-24, 09:40 AM
Replies: 26
Views: 808
Posted By mpetry912

just loosen the bolt and ride around the block a...

just loosen the bolt and ride around the block a couple times.

/markp
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