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Search: Posts Made By: mpetry912
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02-29-24, 08:48 AM
Replies: 28
Views: 589
Posted By mpetry912

it depends... on your instrumentation truing...

it depends... on your instrumentation

truing with a light gap method like the Park TS-2 you are doing pretty good if you can get sub millimeter tolerance in lateral runout.

Radial is harder...
02-26-24, 10:40 AM
Replies: 17
Views: 440
Posted By mpetry912

it's not just the length of the axle with 7,8, or...

it's not just the length of the axle with 7,8, or more speeeds on a freewheel hub.

The drive side hub bearing is essentially in the middle of the axle !

that is why they bend. I cannot...
02-25-24, 04:34 PM
Replies: 6
Views: 157
Posted By mpetry912

Agreed. A lot of these mix and match combos...

Agreed. A lot of these mix and match combos especially across component generations can only be validated with a "try it and see".

measure the overall length of the spindle and compare to the old...
02-25-24, 12:21 PM
Replies: 55
Views: 1,749
Posted By mpetry912

I agree with you ! But by now I thought I had...

I agree with you ! But by now I thought I had paid off the student loans on my PhD from that school

thanks all

/markp
02-25-24, 11:31 AM
Replies: 34
Views: 1,244
Posted By mpetry912

It's because they evaluate bikes in the same way...

It's because they evaluate bikes in the same way they evaluate toasters. They are not enthusiasts.

/markp
02-24-24, 07:02 PM
Replies: 20
Views: 676
Posted By mpetry912

I remember standing next to Spence Wolf, at his...

I remember standing next to Spence Wolf, at his truing stand which was made of angle iron, and he was holding a Hozan spoke tension meter - the old mechanical one.

He said "Mark, this tool here,...
02-23-24, 05:34 PM
Replies: 72
Views: 1,679
Posted By mpetry912

OK, let's see you do better ! Post your plot...

OK, let's see you do better !

Post your plot when done.

/markp
02-23-24, 04:25 PM
Replies: 72
Views: 1,679
Posted By mpetry912

around and around this discussion goes. I'll...

around and around this discussion goes. I'll pick a number, shoot for 100-110 Kgf on the rear drive side and front. Rear non drive will be what it will be.

I am not a big fan of winding spoke...
02-21-24, 09:34 AM
Replies: 25
Views: 495
Posted By mpetry912

I think the short teeth are UP shift aids ...

I think the short teeth are UP shift aids

check your chain tension - should not be too tight on the middle ring.

also check the ANGLE of your front derailleur. outer plate should be parallel...
02-20-24, 09:22 AM
Replies: 34
Views: 1,139
Posted By mpetry912

those Racer brakes really benefit from...

those Racer brakes really benefit from installation of the Compass bronze bushings to replace those 40 year old red plastic bushings.

makes a difference

and let's hear it for roller straddles
...
02-20-24, 09:12 AM
Replies: 20
Views: 676
Posted By mpetry912

I recommend the DT spoke wrench which is 4 sided....

I recommend the DT spoke wrench which is 4 sided.

try truing some old wobbly wheels to build your truing skills.

and I agree with the post above - start with some 32 or 36 spoke wheels before...
02-20-24, 09:09 AM
Replies: 8
Views: 230
Posted By mpetry912

can you ride straight with no hands ? that will...

can you ride straight with no hands ? that will tell you something.

you might be able to confirm the assymetry by flipping the wheel over

/markp
02-18-24, 06:12 PM
Replies: 41
Views: 1,408
Posted By mpetry912

it doesn't take many tire failures for you to...

it doesn't take many tire failures for you to spend more on several cheap tires than buying one quality item.

any tire can get a flat but those cheapies will just disappoint you

especially if...
02-18-24, 06:04 PM
Replies: 15
Views: 363
Posted By mpetry912

I think he inferred that the rotor was out of...

I think he inferred that the rotor was out of true

/markp
02-17-24, 04:07 PM
Replies: 67
Views: 1,803
Posted By mpetry912

I think this is right. the stuff that comes in...

I think this is right. the stuff that comes in patch kits now is so de-natured / watered down that it won't vulcanize the tube.

What you can do is go on ebay and buy tire patch solvent FROM...
02-17-24, 02:43 PM
Replies: 34
Views: 1,139
Posted By mpetry912

so Robvolz which problem are we trying to solve...

so Robvolz which problem are we trying to solve ? Small hands or brake lever position on the bars ?

There are short reach levers out there, these Weinmann "junior" levers are a nice solution...
02-12-24, 06:42 PM
Replies: 30
Views: 966
Posted By mpetry912

Ah, that Patek 5167a, does not get much better...

Ah, that Patek 5167a, does not get much better than that. Funny thing, I did a ride one time with a guy who was wearing one of those.

one of my favorite rides ever

/markp
...
02-12-24, 06:08 PM
Replies: 46
Views: 1,759
Posted By mpetry912

The hand pinstriping of the paint / chrome...

The hand pinstriping of the paint / chrome boundary was a standard thing on Cinellis in period.

here is the "crotch" on my 1970 Special Corsa, also ex Spence Wolf. 20 miles from new on this bike
...
02-12-24, 05:51 PM
Replies: 30
Views: 966
Posted By mpetry912

+1 on the Garmin don't wear a mechanical...

+1 on the Garmin

don't wear a mechanical watch (and especially not a rolex) on a bike. the vibration will wear out the winding rotor pivot and generally beat the heck out of the movement

/markp...
02-12-24, 11:31 AM
Replies: 46
Views: 1,759
Posted By mpetry912

hey SwimmerMike thanks for adding that last bit !...

hey SwimmerMike thanks for adding that last bit ! the changing market and high price of retail floor space is what ultimately did CBS in

there is an aggressive push by the big brands now to...
02-12-24, 11:23 AM
Replies: 20
Views: 466
Posted By mpetry912

I am slowly trimming the herd and have "gifted"...

I am slowly trimming the herd and have "gifted" two bikes to deserving vintagistas.

prices and the market are depressed right now but it's best if those bikes find deserving homes.

at least...
02-11-24, 08:30 PM
Replies: 46
Views: 1,759
Posted By mpetry912

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulletin/800x592/spence_wolf_1_f7fdf15db52986ecbcf104531d54e2c1468ab2f3.jpg
02-11-24, 04:02 PM
Replies: 7
Views: 279
Posted By mpetry912

I have a very few spacers and cogs. ebay is a...

I have a very few spacers and cogs. ebay is a good source for open stock parts too.

the 17T small spline cog is hard to find. these are the best freewheels ever.

you might also have luck with...
02-11-24, 01:53 PM
Replies: 12
Views: 334
Posted By mpetry912

are you doing this so you can use a clamp on...

are you doing this so you can use a clamp on front derailleur that you already have ?

don't. Buy a FD.meant for this type of mount.

There is some risk of cracking the tube if you put the...
02-11-24, 10:50 AM
Replies: 604
Views: 74,059
Posted By mpetry912

https://cimg0.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg0.ibsrv.net/gimg/bikeforums.net-vbulletin/1277x883/sachs25th_bigred_e17f54c2918cd55871f98cbe75612c00f17239ff.jpg
02-11-24, 10:30 AM
Replies: 33
Views: 931
Posted By mpetry912

I think rear is a 32 front is a 28 nice to...

I think rear is a 32 front is a 28

nice to see a silver bike for a change instead of black

/markp
02-11-24, 09:18 AM
Replies: 33
Views: 931
Posted By mpetry912

those Vittoria Corsa tires are great ! I have...

those Vittoria Corsa tires are great ! I have them on several bikes, fabulous ride and zero flats

/markp
02-11-24, 08:39 AM
Replies: 38
Views: 1,095
Posted By mpetry912

Well, right, the buy and hold thing is key and...

Well, right, the buy and hold thing is key and it's hard to tell in advance what will be perceived as "valuable" years down the road. You are correct, one cannot buy with the idea that "this is going...
02-11-24, 08:34 AM
Replies: 33
Views: 931
Posted By mpetry912

Nice looking bike, tasteful build. Fork is...

Nice looking bike, tasteful build. Fork is beautiful. What is the ride like ?

might be too harsh for me

/markp
02-11-24, 07:40 AM
Replies: 38
Views: 1,095
Posted By mpetry912

I have sold TWO bikes for significant upside...

I have sold TWO bikes for significant upside gain: First, the "positive net worth" Cinelli, which I bought on a tip from Spence Wolf in 1987, paid $500 bucks for it, over the years I sold the Mafac...
02-11-24, 07:25 AM
Replies: 46
Views: 1,759
Posted By mpetry912

Spence moved his shop to Pacific Grove CA in 1978...

Spence moved his shop to Pacific Grove CA in 1978 and formed a partnership with Hector Chavez called "Winning Wheels".

Sold the Cupertino name and inventory to John Finley Scott in 81. Spence...
02-11-24, 07:18 AM
Replies: 7
Views: 216
Posted By mpetry912

do you absolutely need to remove it ? use...

do you absolutely need to remove it ?

use the widest prying tool that you can get in there. Kitchen butter knife maybe

/markp
02-11-24, 07:16 AM
Replies: 44
Views: 1,288
Posted By mpetry912

yes, this can be done. you might be better off...

yes, this can be done. you might be better off starting with another bike however

- use a mountain bike triple crank and sealed bottom bracket
- Shimano MTB rear derailleur for wide gearing...
02-10-24, 05:22 PM
Replies: 8
Views: 305
Posted By mpetry912

there's no torque spec for this you want to...

there's no torque spec for this

you want to imagine that you are drawing a wedge or a cone against the walls of the steerer tube

you want it good and snug but do not want to deform or distort...
02-09-24, 10:35 AM
Replies: 46
Views: 1,759
Posted By mpetry912

the DT decals frequently came buggered / damaged...

the DT decals frequently came buggered / damaged from Italy as they were varnish slide and not clearcoated

so they were included on backing paper but not applied

Old school like on your Revell...
02-09-24, 09:34 AM
Replies: 37
Views: 833
Posted By mpetry912

Jim Merz Portlandjim can make one for you in...

Jim Merz Portlandjim can make one for you in stainless or titanium.

Jim's bolt is turned, not rolled threads like Richard's pinch bolt, but very very nice. comparison with the original item on...
02-08-24, 04:23 PM
Replies: 12
Views: 369
Posted By mpetry912

here's a trick I do - get some neoprene foam,...

here's a trick I do - get some neoprene foam, fairly thin, and make a little "pillow" for the valve where it sits inside the rim bed

this will reduce or eliminate the little "pinches" that occur...
02-08-24, 09:21 AM
Replies: 46
Views: 1,759
Posted By mpetry912

Special bike, thanks for sharing it and glad it...

Special bike, thanks for sharing it and glad it found a home. The reflectors of course were mandated by California law.

These bikes came from Italy in wooden crates. they were packed in straw.
...
02-07-24, 10:33 PM
Replies: 50
Views: 1,738
Posted By mpetry912

yes you'll want an old school skewer that can...

yes you'll want an old school skewer that can develop some clamping forces.

the Shimano ones from the mid 90s are good. DA 6500 series ?

/markp
02-07-24, 10:30 PM
Replies: 24
Views: 1,113
Posted By mpetry912

super cool that you are doing this. hope the...

super cool that you are doing this. hope the weather cooperates

/markp
02-07-24, 09:44 PM
Replies: 37
Views: 833
Posted By mpetry912

But life is short. we all pass from this earth....

But life is short. we all pass from this earth. in time the sun will go super nova and contract into a white dwarf. The universe will decay into entropic heat death.

What's wrong with this seat...
02-07-24, 07:10 PM
Replies: 43
Views: 1,771
Posted By mpetry912

oh buddy, heal up well and best wishes /markp

oh buddy, heal up well and best wishes

/markp
02-07-24, 06:40 PM
Replies: 37
Views: 833
Posted By mpetry912

here's the setup I have on my Masi GC, last 15...

here's the setup I have on my Masi GC, last 15 years or so, not the slightest problem, slipping or scratching

my point was that a bolt off Amazon that has "Cro-mo" on it may not be what you think...
02-07-24, 05:26 PM
Replies: 37
Views: 833
Posted By mpetry912

there are a bunch of ways to handle this. The...

there are a bunch of ways to handle this. The best is this Richard Sachs seat pinch bolt. RS Seat Lug Bolt + Nut Assembly - Richard Sachs Cycles...
02-07-24, 05:18 PM
Replies: 13
Views: 502
Posted By mpetry912

FBinNY has it right. Just get a 6mm recessed...

FBinNY has it right. Just get a 6mm recessed brake nut and clearance it out so it slides on the brake shaft

/markp
01-31-24, 06:41 PM
Replies: 30
Views: 986
Posted By mpetry912

agreed if you got 5 years of service out of a...

agreed if you got 5 years of service out of a tire, just replace it and move on

/markp
01-31-24, 09:08 AM
Replies: 53
Views: 1,817
Posted By mpetry912

I saw a Fouga like that fly over last weekend ! ...

I saw a Fouga like that fly over last weekend ! the V tail is distinctive. Clearly too much trail on that nose gear.

that front tire is probably not available from Sporty's Pilot Shop. Or...
01-29-24, 12:59 PM
Replies: 14
Views: 622
Posted By mpetry912

I put "reynolds wheel decals" into an ebay search...

I put "reynolds wheel decals" into an ebay search and got quite a few possibilities

reynolds wheel decals rim for sale | eBay...
01-28-24, 04:10 PM
Replies: 12
Views: 503
Posted By mpetry912

the great Brian Baylis used to say that...

the great Brian Baylis used to say that replacement of the DS dropout was the most common repair he performed. He believed that running an oversized axle (where a 126mm axle was just "forced" into a...
01-27-24, 04:11 PM
Replies: 53
Views: 1,817
Posted By mpetry912

Yes. I lost a good friend to uncontrolled shimmy...

Yes. I lost a good friend to uncontrolled shimmy on his motorcycle. He had a large "trunk" mounted pretty high up and had commented on it prior. he was on a trip with a load, and probably rolled...
Showing results 1 to 50 of 623
 


 
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