Mr-Magura
- Member since Jan 3, 2013
-
Far Far Away , Denmark - 156 Followers
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Mr-Magura ktm87's photo
Apr 16, 2019 at 7:34
Apr 16, 2019
@ktm87: Pockets all the way through, I'd call a competition piece. Anything you expect to survive everyday use, I'd not make like that.
If you wanna try pushing the boundries, you could start playing with bonding, and make it a hollow structure like the Coda Magic cranks.
Those are still the metal cranks with the best weight to stiffness ratio, and extremely strong as well.
I still have a couple of those, that have been run for like 2+ decades by now.
Mr-Magura ktm87's photo
Apr 15, 2019 at 13:50
Apr 15, 2019
@ktm87: I wasn't thinking total weight, but wheel weight. Total weight is no big deal in this case.
Mr-Magura ktm87's photo
Apr 15, 2019 at 13:49
Apr 15, 2019
@ktm87: It helps if you don't machine the pockets all the way through.
Also making it taper towards the pedal in both planes, has been working.
They're sensitive to surface damage around the edges.
If I was to revisit that project, I'd put a radius on as many edges as possible.
Mr-Magura ktm87's photo
Apr 15, 2019 at 5:16
Apr 15, 2019
@ktm87: They work fine, but they're also about twice as wide as yours ;)
Mr-Magura ktm87's photo
Apr 15, 2019 at 5:13
Apr 15, 2019
@ktm87: I'd think 1.5 would make more sense, else you're better off with a CC MTB.
The trick is to keep the weight of the tires down, especially the front end, as you don't have the leverage of a 760mm MTB bar.
Apr 15, 2019 at 4:17
Apr 15, 2019
Mr-Magura ktm87's photo
Apr 15, 2019 at 3:36
Apr 15, 2019
The tires are a bit wide, to make the most of it.
All else looks about right.
Magura :)
