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Search: Posts Made By: Dave Mayer
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03-18-21, 09:42 PM
Replies: 57
Views: 2,389
Posted By Dave Mayer

Assuming you have a figure-8 bandage. Until the...

Assuming you have a figure-8 bandage. Until the clavicle is fully knitted do not - I repeat: do not remove it. Doing so, as I stupidly did 2 weeks in, caused the the partially-healed bone to...
01-25-21, 01:22 PM
Replies: 34
Views: 1,186
Posted By Dave Mayer

The shop discount? Ha ha... good...

The shop discount?


Ha ha... good observation - they don't. A freshly minted professional engineer who had done co-op terms in a fab shop would have a starting salary north of $100k. There...
01-22-21, 08:25 PM
Replies: 34
Views: 1,186
Posted By Dave Mayer

Best qualities in a mechanic? A masters degree...

Best qualities in a mechanic? A masters degree in mechanical engineering, and several years of floor-level experience in manufacturing/fabrication. Bike shop experience may not even be necessary,...
12-18-20, 01:44 PM
Replies: 13
Views: 744
Posted By Dave Mayer

I have seen rims where just one side has 'flexed'...

I have seen rims where just one side has 'flexed' a little causing the misalignment. No big deal; use the wrench fix as I previously described.
11-16-20, 11:34 PM
Replies: 87
Views: 3,419
Posted By Dave Mayer

Dura-Ace 7700 and 7800 are the best shifting STI...

Dura-Ace 7700 and 7800 are the best shifting STI shifters ever. When Shimano moved the cable housings under the bar tape, it introduced sharper cable bends and more friction. This was offset...
10-29-20, 12:25 PM
Replies: 26
Views: 1,445
Posted By Dave Mayer

Dura-Ace 7700 hubs: best ever. Superior cup and...

Dura-Ace 7700 hubs: best ever. Superior cup and cone design, first-rate materials and finish, well sealed and resistant to water and dirt, and standardized parts that allow these hubs to keep...
Replies: 15
Views: 1,033
Posted By Dave Mayer

I own a similar Vitus. Spending a couple of...

I own a similar Vitus. Spending a couple of minutes staring at the pics, here's just the tip of the iceberg:


The rear stay spacing on this bike is 126mm. How did the owner stuff a 9-speed...
10-26-20, 02:28 PM
Replies: 17
Views: 770
Posted By Dave Mayer

Not quite. Chorus and Record cups are...

Not quite. Chorus and Record cups are interchangeable, with the English and Italian cups are swappable as well.

However: Centaur cups do NOT fit the Chorus and Record cores and vice-versa.

I...
10-12-20, 03:16 PM
Replies: 47
Views: 3,011
Posted By Dave Mayer

I was not referring to a 'vintage' bike as being...

I was not referring to a 'vintage' bike as being better than the latest and greatest of 2020. I was referring to a UCI-level (team) bike from say 2015 versus a current $10k consumer bike off the...
10-08-20, 02:40 PM
Replies: 47
Views: 3,011
Posted By Dave Mayer

Relax: this is the Intraweb - it isn't real. You...

Relax: this is the Intraweb - it isn't real. You may have been piled-on by early-adopter types desperate to justify their most recent misguided purchases, but your current bike is better than what...
09-10-20, 02:05 PM
Replies: 42
Views: 1,822
Posted By Dave Mayer

Good question. I've bought a lot of stuff on...

Good question. I've bought a lot of stuff on Ebay, and I'd estimate that about a quarter of the 20-year old derailleurs sold have some kind of major problem. Most you can see from the pics (with...
09-09-20, 12:40 PM
Replies: 11
Views: 553
Posted By Dave Mayer

In the 70's, 36 spoke gear was the most common -...

In the 70's, 36 spoke gear was the most common - by far. 32 holes became more common in the 80's, and by the 90's, with stiffer, higher profile rims, it became the 'standard'.

The other...
09-09-20, 12:33 PM
Replies: 42
Views: 1,822
Posted By Dave Mayer

You need a 8 or early 9-speed Campy rear...

You need a 8 or early 9-speed Campy rear derailleur from 1992 to 2000. They have B-tension adjustment screws. Any model will do, from Mirage to Record, although the less expensive ones are heavier,...
09-06-20, 09:49 PM
Replies: 56
Views: 4,812
Posted By Dave Mayer

Radial-lace some disc-brake wheels and report...

Radial-lace some disc-brake wheels and report back on the results.
09-06-20, 09:16 PM
Replies: 56
Views: 4,812
Posted By Dave Mayer

I've built dozens of wheels.

I've built dozens of wheels.
09-06-20, 09:00 PM
Replies: 56
Views: 4,812
Posted By Dave Mayer

So I took your posting that rim-brake bikes have...

So I took your posting that rim-brake bikes have won 8 of the 9 Tour stages so far. As best as I can, I count 5 teams running rim brakes out of 22 starting teams.


So I ran a statistical analysis...
09-06-20, 11:57 AM
Replies: 56
Views: 4,812
Posted By Dave Mayer

Yeah, discs have been doing well... Nans Peters...

Yeah, discs have been doing well... Nans Peters won yesterday on rim brakes, on a hilly stage with warp-speed descents. His teammates on AG2R also did well in the KOM category and made up time on...
Forum: Road Cycling
09-06-20, 11:28 AM
Replies: 54
Views: 2,472
Posted By Dave Mayer

I'm rocking Campagnolo 9-speed (old) Ergopower...

I'm rocking Campagnolo 9-speed (old) Ergopower shifters that drive Simplex SX630 derailleurs with a Suntour 7-speed Winner Pro freewheel and a Shimano IG71 chain. The wheels are Campagnolo C-Record...
09-01-20, 06:35 PM
Replies: 39
Views: 3,407
Posted By Dave Mayer

When set up properly, in dry conditions, rim...

When set up properly, in dry conditions, rim brakes work well enough for you to lay rubber on the road. Or in wet conditions, to skid out - easily. So better braking isn't required. Discs...
09-01-20, 06:18 PM
Replies: 1
Views: 217
Posted By Dave Mayer

First, a 'sealed' wheelset is meaningless. This...

First, a 'sealed' wheelset is meaningless. This must refer to the hubs. Even when applied to hubs, this term is also misleading and misguided. Why?

Because most decent loose ball hubs are very...
07-22-20, 01:47 PM
Replies: 45
Views: 2,554
Posted By Dave Mayer

Climbing gear ratios? Marco Pantani used 54/44...

Climbing gear ratios? Marco Pantani used 54/44 rings together with a 11-23 cassette - on the tough climbs. Like Ventoux, where he would ascend long 8 percent grades at 20 mph. LMMV.

Climbing...
07-13-20, 07:45 PM
Replies: 27
Views: 1,094
Posted By Dave Mayer

Here: Say your used bike is reasonably worth...

Here:

Say your used bike is reasonably worth $1,000. Here's how you post on Craiglist to lower your final bike sale price, and by how much:

Only pictures of the non-drive side of the bike:...
Forum: Road Cycling
07-10-20, 03:21 PM
Replies: 85
Views: 6,395
Posted By Dave Mayer

Ha ha. Do you write reviews for BUYcycling...

Ha ha. Do you write reviews for BUYcycling magazine? Try this bike review:

Climbs like a methamphetamine-addicted monkey on crampons that is strapped to an ICBM.

Descends faster than monkey on...
Forum: Road Cycling
07-08-20, 01:20 PM
Replies: 85
Views: 6,395
Posted By Dave Mayer

U.R. welcome. I don't have to sell anything in...

U.R. welcome. I don't have to sell anything in the bike industry; I've always had to generate more income than the sorry bike biz could afford. But I assume my post will spawn squeals of protest...
Forum: Road Cycling
07-08-20, 12:28 PM
Replies: 85
Views: 6,395
Posted By Dave Mayer

You own a classic bike. I have been looking for...

You own a classic bike. I have been looking for this model with Postal team colors for 10 years, and would be willing to sell my soul for it. Actually, I already sold my soul to a certain young woman...
06-30-20, 12:14 PM
Replies: 3
Views: 410
Posted By Dave Mayer

With the WD40 flush, you've done all that I can...

With the WD40 flush, you've done all that I can recommend - as far as recovery. Sometimes you have to attack the internals from several different angles and access points, and sometimes it takes...
06-15-20, 04:57 PM
Replies: 37
Views: 2,775
Posted By Dave Mayer

Deep section wheels are more aero, but in the...

Deep section wheels are more aero, but in the real world of riding, but the weight penalty is more of a handicap than the wind resistance watts saved. When I am riding with the fast boys, the...
06-15-20, 12:23 PM
Replies: 37
Views: 2,775
Posted By Dave Mayer

Some unsolicited advice: For an optimized...

Some unsolicited advice:

For an optimized ride experience, I recommend you going to brifters (integrated brake/shift levers). I've recently been riding a Pinarello with Campagnolo 8-speed...
06-15-20, 12:09 PM
Replies: 37
Views: 2,775
Posted By Dave Mayer

The Specialized hubs were made by Sansin, who...

The Specialized hubs were made by Sansin, who also made hubs for Suntour. Good stuff. Coincidentally, I've been riding on a Suntour Superbe Pro hub laced to a Mavic GEL 280 rim for the last few...
06-13-20, 03:09 PM
Replies: 37
Views: 2,775
Posted By Dave Mayer

You will gain weight by going to something...

You will gain weight by going to something modern. Your Araya rims are very light for clinchers, particular by current standards.

Modern wheels feature fewer spokes and more rear wheel dish than...
06-13-20, 02:39 PM
Replies: 48
Views: 2,284
Posted By Dave Mayer

MUP riding is the most stressful thing that I do....

MUP riding is the most stressful thing that I do. Cyclists and peds in general are more oblivious, careless and unpredictable than drivers. We have a great path system here, but on weekends it is a...
06-13-20, 02:09 PM
Replies: 7
Views: 691
Posted By Dave Mayer

Dura-Ace 7400 hub? If the cup is cracked, punch...

Dura-Ace 7400 hub? If the cup is cracked, punch it out and install another off of a donor. Takes the same tools, technique and skill as replacing a cart bearing.

Dura-Ace 7410 headset cartridge...
06-06-20, 01:23 AM
Replies: 17
Views: 943
Posted By Dave Mayer

Record and Chorus cups of that generation are...

Record and Chorus cups of that generation are interchangeable. You can swap English for Italian cups; the 'core' of the cartridge is the same.

Centaur cups cannot be swapped for Chorus/Record;...
Replies: 12
Views: 521
Posted By Dave Mayer

Daytona were nice hubs, with the alu axle and...

Daytona were nice hubs, with the alu axle and superior cup and cone bearing system. The cheaper Campagnolo hubs (Veloce and down) used cartridge bearings. CXP33 rims are pretty beefy. The cassette...
05-29-20, 02:12 PM
Replies: 12
Views: 990
Posted By Dave Mayer

Yep: my mistake. Standard 27mm lockrings are a...

Yep: my mistake. Standard 27mm lockrings are a dime a dozen. I found as many in my parts stash. The plan should be to sell the (rare) 26 lockring and more than recover the cost of a 27 lockring.
05-27-20, 12:09 PM
Replies: 30
Views: 1,442
Posted By Dave Mayer

A hacksaw and the cut-up shards buried deep in...

A hacksaw and the cut-up shards buried deep in the garbage. That is the correct plan.

I volunteer at a high-volume bike Co-op. Please do not donate your crashed or corroded bars to your Co-op. ...
Forum: Road Cycling
05-22-20, 01:10 PM
Replies: 156
Views: 10,775
Posted By Dave Mayer

I cannot think of a bike that I've bought new,...

I cannot think of a bike that I've bought new, except going back to my Gitane Tour de France - in 1973. Still have this bike; heavy, but still rides well.

The Sweet Spot in terms of cost/benefit...
05-21-20, 12:27 AM
Replies: 5
Views: 267
Posted By Dave Mayer

Campagnolo front shifters from that era were not...

Campagnolo front shifters from that era were not indexed. So any front derailleur (double - 28.6mm clamp, bottom pull) should work with the left shifter.

At the bike Co-op I volunteer at, there...
05-18-20, 07:32 PM
Replies: 13
Views: 1,819
Posted By Dave Mayer

I have overhauled about 20 right-hand levers. ...

I have overhauled about 20 right-hand levers. Not much point in overhauling the left levers, as you shift at least 10x as much on the right as the left, and the left levers never seem to need...
05-16-20, 11:55 AM
Replies: 67
Views: 7,477
Posted By Dave Mayer

I own many bikes, and yes, the gravel bikes are...

I own many bikes, and yes, the gravel bikes are slower. They are heavier, and less aero, mainly due to a higher riding position. The fat 28mm tires are slow pigs due to their weight and high...
04-25-20, 09:57 PM
Replies: 45
Views: 2,910
Posted By Dave Mayer

The load path is easy determine, and the diagram...

The load path is easy determine, and the diagram included above completely misses it.

Load is directed downwards through the dropouts onto the ends of the axles.
From there it is transmitted...
04-25-20, 07:01 PM
Replies: 13
Views: 658
Posted By Dave Mayer

A really good deal. This elite-level bike from a...

A really good deal. This elite-level bike from a few years back has some highly desirable features that are getting harder to find on road bikes:

External cable routing. Internal routing: an...
04-25-20, 12:25 PM
Replies: 45
Views: 2,910
Posted By Dave Mayer

Kimmo: thank you for about the only useful...

Kimmo: thank you for about the only useful perspective in this entire thread. In general, your posts are among the only ones that I read because of your high 'get it' factor.

Back to the issue...
04-16-20, 02:01 PM
Replies: 154
Views: 11,033
Posted By Dave Mayer

I don't know why I'm even posting anything here.....

I don't know why I'm even posting anything here.. just some random snarky observations:

Flipping bikes is got to be one of the lowest return for hour invested of any human activity I can think...
04-15-20, 12:38 PM
Replies: 14
Views: 770
Posted By Dave Mayer

Sigh... As I indicated in my earlier post,...

Sigh... As I indicated in my earlier post, mixing your shifters with later generation derailleurs will sort of work. And it also depends on your definition of 'works'; some of my riding pals are...
04-14-20, 08:15 PM
Replies: 14
Views: 770
Posted By Dave Mayer

Any Campy derailleur from 1992 to 2000. Mirage,...

Any Campy derailleur from 1992 to 2000. Mirage, Veloce, Athena, Daytona, Record, Chorus, whatever. 8-speeds and early 9-speed units. They have the same shape, dimensions and are...
03-30-20, 11:41 AM
Replies: 19
Views: 3,518
Posted By Dave Mayer

I have a couple of perspectives on this.. First,...

I have a couple of perspectives on this.. First, I volunteer as a mechanic/instructor at a big-city bike Co-op, and we see many bikes come through the door - every week. We have a large stash of kids...
Forum: Road Cycling
03-08-20, 11:37 AM
Replies: 9
Views: 556
Posted By Dave Mayer

OK... I'll start. Lot's of red flags here. ...

OK... I'll start. Lot's of red flags here. First off, the top-end Bianchi carbon frames have been widely cloned/faked. Is this real, or a sketchy knock-off?
Second: the mismatch between the frame...
03-03-20, 12:13 AM
Replies: 20
Views: 937
Posted By Dave Mayer

My bike shop owner pal once explained to me why...

My bike shop owner pal once explained to me why certain of their customers came in every 3 months for new tubes. It was because that was how long it took for the tire pressure to drop to the point...
02-21-20, 01:09 PM
Replies: 64
Views: 20,923
Posted By Dave Mayer

The bike industry needs more cassette cogs,...

The bike industry needs more cassette cogs, roughly one additional cog every 7 years. Despite us being past diminishing returns at 9 cogs, it does create sales buzz among gullible early adopters,...
Showing results 1 to 50 of 84
 


 
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