Thursday, April 08, 2010
Matt's fork
Matt emailed me looking for a custom fork. His email contained his weight (which, for the sake of privacy, I won't say, but he's not tiny) and the framebuilder's least favorite word.
"Drops".
Yes, we all like to go off drops, whether it's a curb or an 8' ladder. Drops are great fun, but they're really hard on equipment, because for every dozen you land smoothly on a nice 45 degree transition, there'll be one that you went off too fast/slow or that was bigger than you thought - and you'll land flat. In that situation, the bike is experiencing what your knees would if you jumped off your roof and landed with straight legs. Ouch.
In any case, Matt did say the one thing that allowed me to say yes to the project - "I'm not too concerned about weight". I can't count the number of clydesdale-sized, hard-on-parts riders who have emailed me asking for an 800 gram fork they can go hit drops and jumps with. Aaargh!
Solution: beef up the crown and use straightgauge .9mm fork blades. The fork isn't light (about 1200g with a 10" steerer) but it should hold up to some serious abuse and still ride relatively smoothly. Plus I think the lugged crown looks kinda cool. The lugs are made from 1.25x.058" 4130, machined on the mill to the shape I want. I weld everything up, then flux up the blades/crown and braze the blades in (in this case, much stronger than welding them), and finally cut off the excess fork blade material at the top.
I'll see if I can remember to get a picture of the fork when it's back from powdercoat and post it. Should be quite cool.
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5 comments:
Awesome! Big boys everywhere rejoice. Looks sweet, can't wait!
Walt, thats one of the coolest looking forks I've ever seen. I want one.
Thanks guys! The look is pretty neat - though it's a fair amount of extra work.
There are also some benefits for unusual situations (like this one) where a standard fork blade won't work. Very big and very small riders, especially.
That is a pretty fork! I have been riding one similar that was fabricated by Sabrosa Cycles. It's been almost two years and I still have to stop and take a minute to soak in the lugged crown every time I ride it! You can't beat a fork with a lugged crown! It's a great addition to any pony!
Scott
Walt, are lugged crown forks "stronger" for us barely clydes?
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