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It seem a pompetamine has a headtube of around 71-72degrees with a cross fork. (difficult to measure precisely)
maybe try 73.5 degrees + 45mm standard rake fork. Gives the (theoretical) perfect 57mm trail!
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Where can I find a 15mm ID, 24mm OD, 0.3mm thick washer/shim?
I'm totally failin here....:(
Ask this seller on ebay:
He makes custom alu stuff (for nearly the same price as listed)
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Does anyone have a link to a test of 650c road tire rolling resistance (and maybe comparison to 700c as well)?
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^^ are you suggesting him to use the 26" fork instead of the 700c?
I am a bit unsure if he is looking for a short roadbike-like fork (376mm) or a cross fork (390mm) (I cant find the original question/thread/bike).
So if the answer is a roadbike-like disc fork, this one (surly disc trucker 26" fork) exists and is an option.
Sorry for the confusion.
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yes,it is an option.
I have one and with a halo aerowarrior 700c rim there is about 39mm clearance for a tire
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Bit of googling... Croix de Fer forks are 387mm a2c, trucker 700 disc is 390mm. Think they are both 45mm rake. Disc equilibrium are 375mm apparently so would be more likely to mess up your geo...
If you're not talking about the Croix de Fer feel free to ignore all this rubbish.
There are 2 versions of the disc trucker fork:
26" disc trucker fork Axle-to-crown: 376mm Rake: 45mm
700c disc trucker fork Axle-to-crown: 390mm Rake: 45mmhttp://surlybikes.com/parts/forks/disc_trucker_forkignore the name, the 26" works fine with 700c wheels and has a clerance of about 355mm (x 60mm wide at the top) so there is room for 35mm tires. The main drawback is it is pretty heavy: about 1.1 kg.
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About the DMR REvolver hub earlier:
I had one but sold it on:good things:
very wide flange distance. something like 39mm + 39mm = 78mm so it builds a strong wheel.
Solid axle.
Cheap
Uses a FreewheelAnnoying things:
Because of the flange distance (and depending on which disc caliper you use) there is a small clearance to the spokes with 140 and 160mm discs so it helps buying a 1-2mm disc spacer and moving the disc + caliper out a bit.
The chainline with a freewheel is 54mm. It matches the outer ring on a mtb crankset. (This is the main reason I sold it on).
Heavy
Uses a Freewheel -
fixed
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in the same vein:
mullet fat bike!
from here:http://www.flickr.com/photos/pedrogringo/6623048887/in/photostream/
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Another kind of DIY foam disc wheel (foam mat + velcro):
http://www.recumbents.com/mars/pages/proj/tetz/other/wheeldiscs-new.html
...loooks pretty simple -
What about bolts with a smaller/flatter head inside your mudguard holding it on. I guess that is where your tire rubs first
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180mm disc needs 10mm extra, not 20 (diameter versus radius blabla...)
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Very clever. When you say "surprisingly well", do you mean it's actually good? Or not as bad as you thought it would be?
It works well. a bit of adjustment to set up the right amount of cable length and finding a bigger barrel-bolt(?) to hold the cable without slipping, but after that it has been working nicely.
one crucial thing is where to drill the hole in the hydro-leverblade:
The distance from the leverblade's turningpoint/axle has to be a little bit smaller than the same distance between cable and axle on the dropbar levers.
This way the hydrolever move slightly more than the corresponding dropbar lever and the dropbar lever doesn't bottom out.So the cable pull is geared up slightly.
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I made this DIY-hydro-dropbar-converter setup:
So the the hydro levers function as cross top levers.Actually works surprisingly well.
Special bits are Cinelli spinaci extensions cut up and drilled:
...needs better bartape
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Syntace f139
17degrees in 105mm, 120mm, 135mm
http://www.bike24.de/p1709.html
http://www.syntace.com/index.cfm?pid=3&pk=799 -
or this one:
http://shop4cross.com/komponenten/gabeln/gabel-s4c-disc-eylets.html
Axel-to-crown: 400mm
Fork Rake: 45mm
Weight: 640g
139.90 euroThis looks just like a couple of other brands version of a carbon disc fork. Maybe they're all from the same source.
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Maybe this one:
Cyclocross Fullcarbon Fork Gunsha WCC - Disc
http://cyclocross-store.de/product_info.php?info=p579_Cyclocross-Fullcarbon-Fork-Gunsha-WCC---Disc.html&XTCsid=d35e037f922dc299..209,89 EUR + shipping
Axle-to-Crown 398 mm
Rake 45,5 mm
Weight 454 GramsI have not tried/seen it, but according to some german cx forum (via google translate), it is quite good.
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this blog does a lot of rolling tests
continental 4000s generally good
and schwalbe road tubeless looks promising
http://bikeblather.blogspot.dk/2013/08/schwalbe-ironman-tires-clincher.html
https://docs.google.com/spreadsheet/pub?key=0AuJYBb4ZA401dEZmVm43Wkcwd3IzeFZqWXZaUWRDNUE&gid=1
I have used the michelin latex 22-23c tubes in 35mm tires without problems. The Michelin A1 AirComp is a bit heavier and has thicker material than the other makes of latex tube and in my experience they dont blow up as easy on install and are more robust. The thickness shouldn't affect rolling resistance according to the blog so that is another bonus!