That's cool. It's like a Geometron with a gearbox.
buy it, youve been on g boxes for like 15 years now?
I offered him $1200 shipped just now. I’d legit do it for that figure. $2675 shipped as it is now is rich for 24” and old geometry.
solid plan, right thereI offered him $1200 shipped just now. I’d legit do it for that figure.
Yeah its not got the thing that it once was does it.yeah, the gb enthusiasm has waned somewhat over the years. i would have thought we'd have fully embraced & significantly refined the tech by now, but progress has been slow. today's conventional drivetrains are pretty damn effective and reliable, and current gb's still have nagging issues. le sigh.
saw this the other day on a vintage DH FB group i'm in. rad as hell.this is rad. paul brodie tracked down his one of a kind gearbox bike (from 1998) and performed a loving restoration.
before:
after:
neat build thread:
https://www.cycleexif.com/brodie-69er-restoration
i used to race with the original owner; this bike was partially responsible for sparking my gearbox infatuation.
Nice work! Are you getting a frame built around it? What’s next?I designed a gearbox for high-pivot DH bikes.
I did a presentation on it for my school.
Here's a video. Sorry about the quality, it gets better a few minutes in. There's a link in the video description to the slide show for better quality images.
They added motors to bikes before proper gearboxes. Somehow you need to generate income. All those $500 derailleurs, $350 cassettes, etc....holy damn, birthed this thread 18 yrs ago... was pretty sure at the time that gearboxes would have supplanted the lowly derailleur well before now. alas...
williams racing products (trinity bike) working on the most interesting one:Yeah reading the beginning of this thread it seemed like gearboxes were going to be huge. But instead they're almost dead, almost because I think we now have 4 bike brands offering them unless I'm missing any.
Zerode (pinion)
Starling cycles (effigear)
Nicolai (pinion)
Cavalerie (effigear)
Seems like Bombardier is betting on the gearbox segment's grow in the near future:i don't see any significant breakthroughs on the horizon
Is your bb around 375mm? Mine seems impossibly high and short?
I dont know tbh as I haven't measured it yet, the thing is with the lahar once your on it and have sag the BB drops.Is your bb around 375mm? Mine seems impossibly high and short?
dr science to the rescue...once your on it and have sag, the BB drops.