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Search: Posts Made By: mpetry912
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10-09-20, 04:14 PM
Replies: 9
Views: 333
Posted By mpetry912

I agree with Mack above, always measure. ...

I agree with Mack above, always measure.

you can find "on line resources" and have different ERD measurements from each.

you can make a tool to measure ERD from 2 spokes.

Mark Petry...
12-29-19, 09:32 PM
Replies: 16,237
Views: 1,689,486
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
...
12-23-19, 10:08 PM
Replies: 18
Views: 1,323
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, 01:28 PM
Replies: 53
Views: 2,121
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...
12-18-19, 07:10 AM
Replies: 45
Views: 1,643
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: 2,121
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...
12-03-19, 12:16 PM
Replies: 31
Views: 1,147
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...
12-02-19, 09:15 AM
Replies: 26
Views: 1,438
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: 2,468
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...
11-20-19, 08:59 AM
Replies: 38
Views: 2,838
Posted By mpetry912

I have personally known two (otherwise) very...

I have personally known two (otherwise) very knowledgeable people who accumulated "lots of data" and ordered custom frames specifying every detail of frame angle, fork rake, tube guage, etc in the...
11-18-19, 06:41 PM
Replies: 38
Views: 2,838
Posted By mpetry912

yes, I agree with the above. Many have spent...

yes, I agree with the above. Many have spent 1000s of bucks on "custom frames" built to their exact specs and been disappointed. I'm not going to get into a hypothetical discussion based on...
11-17-19, 09:13 AM
Replies: 25
Views: 1,505
Posted By mpetry912

You cannot believe the amount of time and effort...

You cannot believe the amount of time and effort that Brian spent on those chrome frames. If you are going to pay a plater to do a really good job, it will be really expensive.

the comment about...
11-15-19, 08:18 AM
Replies: 21
Views: 1,021
Posted By mpetry912

+1 Amazon is rife with fakes and "substitutions"...

+1 Amazon is rife with fakes and "substitutions" now.

It is far from my first choice for any online purchases. Think before you click.

Also get your alexa and echo dot speakers out of your...
11-14-19, 11:34 AM
Replies: 49
Views: 8,655
Posted By mpetry912

you will spend a long and frustrating career...

you will spend a long and frustrating career correcting the errors in eboy and CL ad postings.

Better to swoop down on underpriced offerings and say nothing !

Just my personal opinion
...
11-13-19, 08:04 AM
Replies: 82
Views: 5,622
Posted By mpetry912

yes, a mud flap and fender will definitely reduce...

yes, a mud flap and fender will definitely reduce the amount of crud that is flung up on the chain from the front tire. I have made very effective mud flaps by cutting up an old waterbottle !

the...
11-10-19, 12:47 PM
Replies: 19
Views: 786
Posted By mpetry912

I guess I mis understood the thrust of the...

I guess I mis understood the thrust of the question "pump to keep in the car".

if you are going to use a Silca or SKS pump to inflate car tires - you'll be pumping a long time.

also with car...
11-09-19, 08:26 PM
Replies: 19
Views: 786
Posted By mpetry912

Find a used Silca of ebay, I grab them for under...

Find a used Silca of ebay, I grab them for under 25 bucks. put a rebuild kit into it and you have a pump you can pass on to your granddkids.

Or, I'll sell you one, fully rebuilt, for 65 + ship
...
11-06-19, 06:42 PM
Replies: 78
Views: 9,447
Posted By mpetry912

Never, ever, let a CL buyer come to your house. ...

Never, ever, let a CL buyer come to your house. For that matter don't put your home address into CL. Use the address of a shopping mall parking lot or your city police statio n.

AGAIN: Never,...
11-06-19, 12:34 PM
Replies: 45
Views: 3,802
Posted By mpetry912

I had a convo with Mark DiNucci about roller...

I had a convo with Mark DiNucci about roller clutch hubs. He brought up an interesting point - that is, the forces imposed by the rollers in the "sprag" unit are far greater than those in a...
11-05-19, 08:53 AM
Replies: 29
Views: 1,966
Posted By mpetry912

How bout this one ? RS 25th Anniversary...

How bout this one ? RS 25th Anniversary signature model #19/25

This is the Agate Passage pier on the west side of Bainbridge Island.

Mark Petry
Bainbridge Island, WA USA
...
11-04-19, 09:32 AM
Replies: 52
Views: 3,356
Posted By mpetry912

Some good ones here ! I liked the black Berin. ...

Some good ones here ! I liked the black Berin. Gugie is that pic at Bonneville dam ?

Raleigh Pro Mark 1 with fenders. Previous owner had the fenders striped to match bike, paint by CycleArt,...
11-03-19, 04:56 PM
Replies: 19
Views: 570
Posted By mpetry912

I used a mixed Record / Chorus alloy gruppo on my...

I used a mixed Record / Chorus alloy gruppo on my "last bike I'll buy" DiNucci. Its a fantastic built, smooth running and NOT all black. I had been saving that gruppo for a while.

I think you'll...
11-03-19, 10:16 AM
Replies: 35
Views: 2,815
Posted By mpetry912

you can buy replacement bolts of higher quality...

you can buy replacement bolts of higher quality for those seatposts.

I recommend the Nitto 2 bolt seatpost, it's super strong and will not slip.

There are other designs that are "interesting"...
11-02-19, 09:10 PM
Replies: 51
Views: 2,688
Posted By mpetry912

Bikeman, I like all your suggestions. I...

Bikeman, I like all your suggestions.

I want everybody to stop struggling with crappy "tire levers". I am lucky enough to have this Park tool which they quit making. It will get any tire - no...
11-01-19, 08:39 PM
Replies: 35
Views: 3,060
Posted By mpetry912

Dave Levy of TI Cycles makes a beautiful titanium...

Dave Levy of TI Cycles makes a beautiful titanium threadless stem.

reasonably priced and very light !

I have one on my DiNucci and it is the shiznit
...
10-29-19, 09:56 PM
Replies: 32
Views: 1,929
Posted By mpetry912

Garrett - may I suggest you add the Tioga City...

Garrett - may I suggest you add the Tioga City Slicker or (2nd choice) Kenda R838 to your short list.

the Tioga is really a great tire for street use, very flat resistant and low noise and rolling...
10-26-19, 06:10 PM
Replies: 34
Views: 2,113
Posted By mpetry912

I would not use an abrasive. I'm with Doug, an...

I would not use an abrasive. I'm with Doug, an auto supply "bug and tar remover" is the first thing I'd try if a wet rag doesn't work.

Mark Petry
Bainbridge Island, WA USA
10-21-19, 01:17 PM
Replies: 31
Views: 1,825
Posted By mpetry912

well since we're going down THAT road ...

well since we're going down THAT road

https://cimg3.ibsrv.net/gimg/bikeforums.net-vbulletin/800x600/hackerx19_2_2a8c6c065e1af315ddd18a5cb5e4ed10d99d3528.jpg
10-20-19, 04:38 PM
Replies: 10
Views: 666
Posted By mpetry912

Okay, I am nuts

I laid out my pile of Silca pumps for a family photo and am somewhat embarrassed at how many I have.

I keep one in the car, 2 out in the shop, and the other 3-4 in my bike room.

I have picked...
10-20-19, 12:42 PM
Replies: 9
Views: 734
Posted By mpetry912

That's a beautiful bike. Great blue color. and...

That's a beautiful bike. Great blue color. and you have the original racks and stem, that's a plus. I really like the tail lamp mount on your rack, mine does not have that. This might be a Roland...
10-20-19, 12:37 PM
Replies: 31
Views: 1,825
Posted By mpetry912

this one may have required welding. seen on...

this one may have required welding. seen on Michigan Av, downtown Chicago.

Mark Petry
Bainbridge Island, WA USA
...
10-19-19, 09:19 AM
Replies: 50
Views: 4,278
Posted By mpetry912

Thanks for posting that article TenGrain. I'd not...

Thanks for posting that article TenGrain. I'd not read it before however I have seen that bike and it is pretty neat. And thanks Gugie for posting pics of that tandem. It was incredible. I had my...
10-19-19, 08:38 AM
Replies: 42
Views: 2,288
Posted By mpetry912

nobody has mentioned the Suntour winner pro in...

nobody has mentioned the Suntour winner pro in Ultra-6. These have become pretty sought after in desireable ratios. They allow you to run a 6 speed block on a 120mm axle which is as cool today as...
10-17-19, 05:58 PM
Replies: 13
Views: 696
Posted By mpetry912

nice pics. they are cool parts ! Here's a...

nice pics. they are cool parts !

Here's a 7850, new in box. End of the evolution, best rear hub ever. Has the titanium freehub body

I'm going to build it up and use it for a rear wheel on my...
10-16-19, 07:59 PM
Replies: 15
Views: 676
Posted By mpetry912

I think it is great that some people are thinking...

I think it is great that some people are thinking outside the "all campagnolo" box.

good for you for mixin it up a bit

Mark Petry
Bainbridge Island, WA USA
10-14-19, 05:19 AM
Replies: 25
Views: 3,439
Posted By mpetry912

oh come on, that's superficial. Clean it off...

oh come on, that's superficial. Clean it off with a scotchbrite pad, some WD40 and soapy water, will be fine.

I was on a ride once, down in the King's Canyon area, back country trail, like a 3...
10-13-19, 02:58 PM
Replies: 25
Views: 3,439
Posted By mpetry912

First, go spend $12000 on a new Trek Emonda with...

First, go spend $12000 on a new Trek Emonda with SRAM Red and all the goodies.

2nd, get some WD40 and a brass brush and clean that corrosion off there.

then sell old bike to pay down new bike....
10-11-19, 12:31 PM
Replies: 561
Views: 98,429
Posted By mpetry912

wow, some really impressive hardware in this...

wow, some really impressive hardware in this thread. I'll throw in these three, another DiNucci similar to Brent's that I got this summer and then a Richard Sachs from 1996. Both are extraordinary...
10-07-19, 05:26 AM
Replies: 26
Views: 3,195
Posted By mpetry912

Nice post, Van. I agree, no way would I grind...

Nice post, Van. I agree, no way would I grind down a Snap-On socket ! Use the best tool for the job as they say. If you are working in the pits at Indy then yes a full Snap-On box is cool but in the...
10-06-19, 03:52 PM
Replies: 7,537
Views: 1,959,749
Posted By mpetry912

how about this Serotta "T-Max" with ultra tapered...

how about this Serotta "T-Max" with ultra tapered Columbus tubin.g. This bike has "go-kart" handling, and faded florescent paint.

Mark Petry
Bainbridge Island, WA USA
...
10-06-19, 01:45 PM
Replies: 1
Views: 362
Posted By mpetry912

New Bolts for Old Lug Nuts

we had a thread last week about Cinelli pinch bolts and how they get hammered over the years. A lot of the parts we are riding are now 40 years old. In some cases used bikes have been attacked by...
10-05-19, 06:29 PM
Replies: 6
Views: 350
Posted By mpetry912

we had a discussion on this earlier. the short...

we had a discussion on this earlier. the short answer is NO. The marginal "strength" gain associated with 40 spoke wheels can be approximated by using a heavier rim on a 36 hole hub.

Mark Petry...
10-05-19, 08:29 AM
Replies: 26
Views: 3,195
Posted By mpetry912

Yes but it looks like NoMadMax has "trumped" my...

Yes but it looks like NoMadMax has "trumped" my ace on Snap-On. Sounds like another tool box thread coming on.

Mark Petry
Bainbridge Island, WA USA
...
10-04-19, 05:31 AM
Replies: 7,537
Views: 1,959,749
Posted By mpetry912

does this one count ? Ibis Bow Ti, full...

does this one count ? Ibis Bow Ti, full suspension with no pivot. It's a leaf spring. they only made about 10 of these. Interesting bike.

Mark Petry
Bainbridge Island, WA USA

...
09-30-19, 05:27 AM
Replies: 26
Views: 3,195
Posted By mpetry912

That's a good trick, Van ! Remember too that...

That's a good trick, Van !

Remember too that not just any bar will fit these ! you need the correct size Cinelli bar, 26.4mm diameter. If you use a bar that is 25.4 or 26.0 diameter, both of which...
09-29-19, 09:17 AM
Replies: 37
Views: 3,191
Posted By mpetry912

It's a bit of a long discussion but just because...

It's a bit of a long discussion but just because it says on the internet that 100 KgF is a good spoke tension, that's what you should aim for on your tension guage - don't.

A spoked wheel is a...
09-25-19, 05:48 AM
Replies: 93
Views: 5,319
Posted By mpetry912

it's an interesting question. All of the answers...

it's an interesting question. All of the answers in line above form pieces of the puzzle. I think people like to hang out with "their own" like dogs in a pack or orcas in a pod. What I'm aware of...
09-19-19, 07:24 PM
Replies: 92
Views: 6,010
Posted By mpetry912

I routinely - and on most of my bikes - run...

I routinely - and on most of my bikes - run different front / rear wheels and tires.

A taller frame shifts more of the rider's weight to the rear because of the seat post set back.

Most flats...
09-19-19, 03:36 PM
Replies: 92
Views: 6,010
Posted By mpetry912

I'm in agreement with my right honorable friend...

I'm in agreement with my right honorable friend here. Some get carried away with OCD over locknut date codes and so forth, I try not to worry about such details. Polishing and tuning, and some...
09-15-19, 11:17 AM
Replies: 23
Views: 1,689
Posted By mpetry912

I think that a very careful inspection of any...

I think that a very careful inspection of any vintage aluminum part is not a bad idea. Long stems and maybe brake arms especially - things which, if they failed, might endanger your safety or life....
Showing results 1 to 50 of 82
 


 
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