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Any Info On Framebuilder Dave Tesch(10 posts)

Any Info On Framebuilder Dave TeschS-22
Nov 1, 2001 2:17 PM
Tesch was a framebuilder in the late eighties out of San Marcos, CA. Does anyone have or know where to find current or past information about his work?
Dave TeschTJeanloz
Nov 1, 2001 2:28 PM
I swear, you guys are just throwing me bones today...

Tesch learned to build bikes in the early 1970s at Trek in Waterloo, Wisconson; before Trek was the Evil Empire. He then went on to build bikes for Masi USA, a licensed offshoot of the Italian company. After a stint at Masi, he became a solo artist, producing bikes under his own name.

He was well known as detail-crazy, and his bikes are considered collectibles and custom bikes of the highest quality.
Dave TeschS-22
Nov 1, 2001 3:18 PM
Thanks for the info. Any idea what he is up to now?
Dave TeschTJeanloz
Nov 1, 2001 4:36 PM
I did hear something about him last time I was at Interbike; now if I can only remember what- I think he's consulting to one of the big California companies; Specialized, GT or some such maker.
Dave Tesch 3SteveS
Nov 1, 2001 4:46 PM
Don't have any idea about Dave Tesch nowadays, but I do know something of the past. Dave's bikes were very much like a track bike designed for road use. Matter-of-fact, I still have one of Tesch's spec sheets. The bikes had steep head and seat tube angles, and if memory is correct (debatable) he had a design constant of fork rake. Whatever it was, it was minimal, something like 38mm.(?)

My riding partner has his original S-22 and had Ibis build a custom ti version of the same thing. He couldn't make the fork rake in carbon at the time, so that is the difference. He obviously loves it.

I talked with William Lewis of William Lewis Imports about a year or so ago, and he had a Tesch prototype in titanium, built in the late 80's or early 90's. Maybe I should check on that thing and add it to my fleet. That or have someone like Anvil build me a neo-Tesch someday.

The net effect is that most riders who had Tesch, thought they had something really special in spirited handling.
Dave Tesch 3S-22
Nov 2, 2001 7:59 AM
Interesting information, Thanks.

I have my original S-22 that I bought directly from Tesch in his little shop in San Marcos, CA. I've ridden it hard for 12 years and it is still going strong. However, I'm thinking about swapping out the fork for a carbon one. I've tried to measure the fork rake but really have no idea how to do it precisely. Can you offer any info on how to do that?
Measuring fork rake...TJeanloz
Nov 2, 2001 8:06 AM
It's probably more work that you want, but:

Remove the fork from the bike. Remove the crown race from the fork. Lay the fork, back side down, on a workbench. Measure distance from workbench to the center of the dropout. That is your rake.
Don't forget...Nessism
Nov 2, 2001 10:21 AM
rake is measured from the centerline of the steerer tube. If you lay the fork flat on a table, you will need to subtract off 1/2" which is half the diamater of a one inch steerer tube.
Built For SpeedSteveS
Nov 2, 2001 10:18 AM
On occasions like this, I turn to my library of old cycling magazines, this time "Bicycle Guide" issue for October 1987. This is the original "Bicycle Guide" not at all like it's last namesake and about a galaxy away from the current version of "Bicycling." The 1987 issue highlights custom builders Albert Eisentraut, Bill Davidson, Tom Ritchey, and Dave Tesch.

A few tidbits more on Dave's history. He was 28 years old at the time of the article and states that his first real start at building frames came under Tim Isaac at Trek. (Isaac later on worked with one of the large Chinese bicycle companies, along with Jamie Raddin (founder of Airborne), then Isaac started Match Cycles and built Rivendells until Match closed..) Later Tesch moved to California and worked at CycleArt and along with Jim Cunningham, Brian Bayliss, and Dave Moulton sharing the same office space. Nice crowd. After awhile, Tesch goes independent and through a connection gained at CycleArt, contracts to build bikes for the Raleigh Racing team. The rest is history and some degree of rumor

The key point here is that Tesch did indeed keep fork rake constant on his frames: "You have to keep something constant in all your designs. Some builders choose trail, others choose head angle. I think I can more accurately predict how my bikes will ride by giving each the same fork"... Tesch's forks were all 35mm in rake.

If the owner's fork is original and appears to be the same 35mm in rake, I would be very reticent to change that. The only fork builder that I know of who would do custom in carbon fiber is AME and I would call them to see if they could or would reproduce that same rake. Word is that the company has been bought out, but if Dr. Lee is still there, you might be in luck. Keep that Tesch pristine. Good luck.
Built For SpeedS-22
Nov 2, 2001 10:25 AM
SteveS, Thanks for the info. Very Interesting.