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Search: Posts Made By: Dave Mayer
Showing results 1 to 50 of 1000
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02-21-20, 01:09 PM
Replies: 52
Views: 16,919
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,...
02-14-20, 12:58 PM
Replies: 13
Views: 248
Posted By Dave Mayer

Ahh. so many complex and expensive solutions...

Ahh. so many complex and expensive solutions proposed here. Anyway, I've run Campy 9-speed levers (second gen.) with Shimano 9-speed cassettes for many years. Flawless shifting: as good as any...
02-14-20, 12:50 PM
Replies: 5
Views: 174
Posted By Dave Mayer

These are Powershift shifters. I have serviced...

These are Powershift shifters. I have serviced many of the higher-end Ultrashift levers, the difference being that Powershift drops one gear at a time, whereas Ultrashift allows multiple shifts.
...
Forum: Road Cycling
02-05-20, 02:02 PM
Replies: 16
Views: 482
Posted By Dave Mayer

Save yourself a whole bunch of cost and time and...

Save yourself a whole bunch of cost and time and get a matching replacement front shifter. FleaBay. Rear shifters are the ones that wear out first, so looking for a front should be relatively...
01-04-20, 11:52 PM
Replies: 12
Views: 335
Posted By Dave Mayer

You have several things working against you... ...

You have several things working against you... As previously mentioned, the original Shimano brake pads were hopeless when new, and as they age and get hardened, they don't get any better.

I...
Forum: Road Cycling
12-31-19, 03:05 PM
Replies: 137
Views: 6,943
Posted By Dave Mayer

Disc-brake equipped road bikes are indeed...

Disc-brake equipped road bikes are indeed dominating the showroom floors. I observed it in person on a recent visit to my local Trek dealer.

Due to a recent monetary windfall, and in a race...
12-20-19, 05:35 PM
Replies: 9
Views: 416
Posted By Dave Mayer

Replacing individual cogs: I've been doing this...

Replacing individual cogs: I've been doing this for decades, with no apparent deterioration in shift quality. If you mix Hyperglide with the older Uniglide cogs, you will notice some clunkiness in...
Forum: Commuting
12-20-19, 03:00 AM
Replies: 25
Views: 1,424
Posted By Dave Mayer

Trick question... obviously you want to be on...

Trick question... obviously you want to be on 1,000 gram (front and rear wheels combined) low-profile carbon tubulars mated with $150, 200 gram tires. The lowest rotating mass of any possible wheel...
12-20-19, 02:47 AM
Replies: 18
Views: 578
Posted By Dave Mayer

I'm the unfortunate owner of a few of these hubs:...

I'm the unfortunate owner of a few of these hubs: the Dura-Ace 740X series.

The freehubs are unlike anything Shimano made before or since, and are actually screwed into the hub shell with a...
Forum: Road Cycling
12-10-19, 01:46 PM
Replies: 75
Views: 7,126
Posted By Dave Mayer

I'm riding 22mm tubulars on packed gravel almost...

I'm riding 22mm tubulars on packed gravel almost every day. I also have a 'cross bike that I recently fitted with (fatter) 28mm clinchers. The fatter tires make the bike ride like a farm tractor. ...
12-10-19, 01:35 PM
Replies: 23
Views: 793
Posted By Dave Mayer

Tubulars: for your type of riding you should want...

Tubulars: for your type of riding you should want the lowest rotational mass for the climbs, but also consider safety on what must be warp-speed descents. Tubulars are made for this.

Look at the...
11-26-19, 01:30 PM
Replies: 12
Views: 550
Posted By Dave Mayer

I've done worse. My X-ray showed about a 1" wide...

I've done worse. My X-ray showed about a 1" wide gap in the clavicle with a jumbled mess of bone shards in between. I wore my bandage for about 6 weeks. Whatever you do, don't take it off...
11-26-19, 01:19 PM
Replies: 139
Views: 11,150
Posted By Dave Mayer

It is ancient retro-farts like on this forum that...

It is ancient retro-farts like on this forum that are holding up technological progress on road bikes.

I would like to see tuneable front and rear suspension on road bikes. Why not? It would...
Forum: Road Cycling
11-25-19, 06:57 PM
Replies: 46
Views: 4,245
Posted By Dave Mayer

You don't have a 6700 cassette - the lockring is...

You don't have a 6700 cassette - the lockring is clearly labelled: 7800, meaning Dura-Ace, unless someone inexplicably swapped out your lockring. The cassette doesn't look particularly worn, although...
11-23-19, 07:05 PM
Replies: 139
Views: 11,150
Posted By Dave Mayer

On my 'cross bike with rim brakes I can easily...

On my 'cross bike with rim brakes I can easily clear 32mm tires. This bike is fitted with TRP 8.4 mini-V's that have incredible power and modulation.

On my old MTB, I have 55mm knobbies and XTR...
11-21-19, 02:04 PM
Replies: 139
Views: 11,150
Posted By Dave Mayer

I've spent much of my last two shifts at our...

I've spent much of my last two shifts at our local Co-op trying to solve disc brake problems. These included:

A slightly bent rotor and intermittent rubbing. Very frustrating - hard to eyeball if...
11-19-19, 07:14 PM
Replies: 19
Views: 637
Posted By Dave Mayer

Nope: my original post used accurate and precise...

Nope: my original post used accurate and precise language.

Ergopower is the general term for all Campagnolo integrated brake/shift levers from about 1992 to present. Brifters, if you wish.
...
11-19-19, 01:27 PM
Replies: 66
Views: 4,822
Posted By Dave Mayer

Well, this was a scam. The seller was obviously...

Well, this was a scam. The seller was obviously and repeatedly employing a shill bidder to expose my high bid, and run up the final price. When the shill bidder inadvertently 'won' the auction, the...
11-18-19, 07:50 PM
Replies: 66
Views: 4,822
Posted By Dave Mayer

Yeah, I used to buy a lot more on Ebay; not much...

Yeah, I used to buy a lot more on Ebay; not much now. I am a long-time buyer, never a seller.

For searches, I have long used the 'minus' filter, useful on both Craigslist and Ebay. I have a long...
11-15-19, 03:07 PM
Replies: 19
Views: 637
Posted By Dave Mayer

I have used and serviced about every vintage of...

I have used and serviced about every vintage of Ergopower shifters from early 8-speed to 11-speeds.

If your Veloce shifters are Ultrashift 10-speeds (multiple downshifts), then there is no...
Forum: Road Cycling
11-11-19, 07:30 PM
Replies: 20
Views: 638
Posted By Dave Mayer

Thanks for the quote, but your response is...

Thanks for the quote, but your response is completely wrong. 8speed Dura-Ace needs a rear derailleur with an actuation ratio of 1.8:1.. All other 7/8/9/10 speed Shimano road (and most MTB) rear...
Forum: Road Cycling
11-11-19, 07:26 PM
Replies: 20
Views: 638
Posted By Dave Mayer

Big assumption: that the OP has 8-speed Dura-Ace...

Big assumption: that the OP has 8-speed Dura-Ace shifters. If so, then only a 740X series rear derailleur will index correctly with the Dura-Ace shifters (downtube or brifters).

Installing a...
11-04-19, 02:25 PM
Replies: 24
Views: 750
Posted By Dave Mayer

I've run Dura-Ace 7400 brakes; I probably have a...

I've run Dura-Ace 7400 brakes; I probably have a few sets sitting in a big bin 'o brakes.


The problems with these vintage pads is not just they were too small, and the rubber is hardened after...
11-04-19, 02:03 PM
Replies: 7
Views: 354
Posted By Dave Mayer

Answer is no. When Shimano went to 11-speeds,...

Answer is no. When Shimano went to 11-speeds, for some inexplicable reason, they changed their derailleur geometry so that only 11-speed derailleurs work with 11-speed shifters.

As far as 6700...
11-01-19, 04:22 PM
Replies: 4
Views: 989
Posted By Dave Mayer

I can get stuff at shop wholesale. It is a...

I can get stuff at shop wholesale. It is a waste of time to even open the catalogues.

Personally, I buy a lot of stuff from ProBike, Chain reaction, etc. Bikes Direct has great deals on...
10-26-19, 01:21 PM
Replies: 119
Views: 7,728
Posted By Dave Mayer

Johnny Mac knows tennis. He also knows woman's...

Johnny Mac knows tennis. He also knows woman's tennis, as he has a Grand Slam mixed doubles trophy in his case.


McEnroe was being interviewed by a (stupid) BBC reporter, and had indicated that...
Forum: Road Cycling
10-22-19, 01:16 PM
Replies: 51
Views: 2,451
Posted By Dave Mayer

Amen on the safety benefits of tubulars. The last...

Amen on the safety benefits of tubulars. The last tubular blowout I experienced was inside a tunnel doing 40mph. I hit something large in the dark and the rear tire was flat in like one wheel...
Forum: Road Cycling
10-21-19, 05:14 PM
Replies: 51
Views: 2,451
Posted By Dave Mayer

A snob-brand bike is one that you pay 25% more...

A snob-brand bike is one that you pay 25% more over an identically specced bike from the somewhat lesser-known brands such as Fuji, Kestrel, Garneau, Orbea, Opus, etc.

Most of the extra margin...
Forum: Road Cycling
10-21-19, 03:38 PM
Replies: 51
Views: 2,451
Posted By Dave Mayer

I do, from the guys and girls who get free stuff...

I do, from the guys and girls who get free stuff every year.

Ultimately, the gullible early adopters/trend followers with lots of disposable income pay the bills. Evidence: 12-speed, tubeless,...
Forum: Road Cycling
10-21-19, 02:25 PM
Replies: 51
Views: 2,451
Posted By Dave Mayer

??? At 25mph, the hammerhead at the front of the...

??? At 25mph, the hammerhead at the front of the pack is putting out 400 watts. At the back, we're eating little sandwiches and yakking about the movie we saw last night. 100 watts.

The only...
10-21-19, 02:12 PM
Replies: 48
Views: 2,532
Posted By Dave Mayer

Some more: Needs some TLC = A mechanics...

Some more:

Needs some TLC = A mechanics nightmare of corrosion, stripped bolts and cheap components.

Vintage = A 1992 department-store mountain bike that was fished out of the recycling depot....
10-21-19, 02:05 PM
Replies: 48
Views: 2,532
Posted By Dave Mayer

Craigslist translation guide: Peddles =...

Craigslist translation guide:

Peddles = pedals
Helmut = helmet
Breaks = brakes
Rims = wheels
Tires = wheels

Needs repair = was police evidence in a vehicular homicide hit ‘n run
Forum: Road Cycling
10-21-19, 01:51 PM
Replies: 51
Views: 2,451
Posted By Dave Mayer

I got the tires for free. They refuse to die. ...

I got the tires for free. They refuse to die. I've resorted to daily high-speed runs on packed gravel on these 22mm tires. Still won't die.

And what do you me by slowest? Differences between...
Forum: Road Cycling
10-21-19, 12:59 PM
Replies: 51
Views: 2,451
Posted By Dave Mayer

Why such good deals on tubular wheelsets? Two...

Why such good deals on tubular wheelsets? Two reasons off the top of my head... first, tubular rims are far easier to manufacture than clincher rims. The two 'hooks' on the clincher rim (required to...
10-21-19, 12:33 PM
Replies: 7
Views: 847
Posted By Dave Mayer

Campagnolo 8-speed cassettes do not fit on the...

Campagnolo 8-speed cassettes do not fit on the newer 9/10/11/12 speed freehub bodies. What I mean by newer is the anything made in the last 20 years - with the deep freehub splines.

It is not...
10-17-19, 04:02 PM
Replies: 13
Views: 540
Posted By Dave Mayer

The bottom rear hub is Dura-Ace 7700: my favorite...

The bottom rear hub is Dura-Ace 7700: my favorite of all time.

The older of the Dura-Ace hubs is a 7-speed 7401 unit: for 6/7 speed Uniglide. Replacement freehubs for these are unobtainable. ...
Replies: 26
Views: 1,687
Posted By Dave Mayer

Not just Poprads - other 'cross type bikes with...

Not just Poprads - other 'cross type bikes with cantilever brakes and lightweight compliant forks..

What happens is that during hard front braking the fork gets pulled backwards. Which means the...
Replies: 26
Views: 1,687
Posted By Dave Mayer

I bought my Poprad for $700 Canadian Pesos. ...

I bought my Poprad for $700 Canadian Pesos. Best money I ever spent.

My bike came with a Campagnolo Chorus groupset, and the Tru Temper OX frameset. Incredibly well -riding and versatile bike. ...
Forum: Road Cycling
10-11-19, 09:45 PM
Replies: 26
Views: 1,619
Posted By Dave Mayer

Record 10 is about the sweetest shifting...

Record 10 is about the sweetest shifting mechanical groupset I've used. Chorus is the same, without the weight-saving titanium giblets.

Best thing about Campy 10-speed is that the 13-29 cassettes...
10-11-19, 09:16 PM
Replies: 58
Views: 3,263
Posted By Dave Mayer

More advice... I have several bikes with 7 and 8...

More advice... I have several bikes with 7 and 8 speed Campagnolo Ergopower. And a new build with 11-speed Ergopower.

The old bikes shift just as well as the new stuff. Same shifting speed and...
10-11-19, 09:06 PM
Replies: 58
Views: 3,263
Posted By Dave Mayer

I have many Campagnolo equipped bikes, in...

I have many Campagnolo equipped bikes, in 7,8,9,10 and 11 speeds.

Chains last 2,000 miles; they are throwaway consumables.

You replace your chain 3-4 times for every cassette. Installing...
10-07-19, 03:32 PM
Replies: 11
Views: 10,399
Posted By Dave Mayer

On the paved roads in my part of the world, a...

On the paved roads in my part of the world, a full-suspension bike would be the worst choice for efficiency and speed. Unless you are regularly contending with head-sized rocks and car-sized...
10-04-19, 02:14 AM
Replies: 20
Views: 898
Posted By Dave Mayer

I volunteer at a big-city bike Co-op. We get...

I volunteer at a big-city bike Co-op. We get dozens of bike donations per week. A lot of these are brought by folks that know deep down that the bikes they bring us are worthless crap, and only do...
10-02-19, 12:43 PM
Replies: 83
Views: 7,281
Posted By Dave Mayer

Ha! 5 year old thread. I hated cheap bikes with...

Ha! 5 year old thread. I hated cheap bikes with suspension forks then, and I hate them even more now.


Why?.. since then, I've taken up volunteering at a big-city bike Co-op. We get dozens of...
10-01-19, 03:09 PM
Replies: 27
Views: 1,213
Posted By Dave Mayer

Model of shifter doesn't matter. Xenon 10-speed...

Model of shifter doesn't matter. Xenon 10-speed and Centaur 10-speed pulls the same amount of cable as 10-speed Record. Of course, my 'fix' is relevant to Campy 10-speed shifters while running a...
10-01-19, 01:08 PM
Replies: 27
Views: 1,213
Posted By Dave Mayer

Use a Campy 8 or early 9-speed era rear...

Use a Campy 8 or early 9-speed era rear derailleur and an unmodified Shimano 10-speed cassette.

Veloce, Daytona, Athena, whatever. Should cost about $50 on Fleabay.

The cable pull of the...
09-30-19, 01:40 PM
Replies: 8
Views: 1,238
Posted By Dave Mayer

Tiagra 10-speed is not compatible with earlier...

Tiagra 10-speed is not compatible with earlier Shimano 10-speed (such as 105, Ultegra, etc.) components. The derailleur actuation ratio has been modified from the previous 1.67. Best I can measure,...
09-26-19, 12:29 PM
Replies: 12
Views: 535
Posted By Dave Mayer

My Vitus 979 has a Victory Crankset. I rode 40...

My Vitus 979 has a Victory Crankset. I rode 40 easy miles on it yesterday.

This crankset uses 116 BCD rings; my crankset is set up with climbing-friendly 36-50 rings.

The crankarms are...
09-21-19, 02:36 PM
Replies: 2
Views: 247
Posted By Dave Mayer

I'm riding a Poprad today. If I had to thin my...

I'm riding a Poprad today. If I had to thin my herd from (approximately) 10 bikes to one, this is the bike I would keep.

Outstanding do-it all bike.

I would however replace the canti brakes...
09-18-19, 04:51 PM
Replies: 13
Views: 381
Posted By Dave Mayer

Old Shimano road (10 speed and earlier) was 1.67....

Old Shimano road (10 speed and earlier) was 1.67.

Exception: Tiagra 10 speed has the same actuation ratio as 11-speed . Which is not 1.4 as indicated by some on this Forum. I measured: it is...
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