Author Topic: Isla 24" geometry for a bamboo build  (Read 334 times)

Isla 24" geometry for a bamboo build
« on: May 01, 2019, 09:35:32 am »
Who's daughter/son has an Islabike Beinn 24"?

Would you take some measurements for me please as Isla are the bees knees when it comes to kids fit? Last year I built a bamboo bike for my son using a paid for custom design from the kit providers. It wasn't right, the BB was way too high, the same as an adults and there was toe overlap. I've been sent a new kit and am attempting to design one in RattleCAD, the free BikeCAD won't load in any of my browsers. I'd like to compare with an Isla geometry.

I'm after:
    BB height (centre to floor)
    Wheelbase (dropout to dropout)
    Chainstay length (centre BB to rear dropout)
    Effective horizontal toptube length (horizontal line between centre head tube and seat tube)
    Handlebar clamp height (centre to floor)
    Crank length (centre BB to centre pedal spindle)

(I'm guessing most in this section know how to measure those but just in case)
Any help would be much appreciated.

The current frame

BB height

Toe overlap

Re: Isla 24" geometry for a bamboo build
« Reply #1 on: May 01, 2019, 10:49:52 am »
I haven't got one (either the bike or a child!), but I found some info here: https://forums.mtbr.com/families-riding-kids/islabikes-geometry-937018.html

Cranks are 140mm according to Islabikes website.

Re: Isla 24" geometry for a bamboo build
« Reply #2 on: May 01, 2019, 06:18:17 pm »
Cheers, nice find. They used to have the drawings on their site, I only looked there.