What crank length for 24" trials and other?'s

[teachndad]

Hi,

I was doing some research tonight and came across some threads I didn't get a chance to read.

John Childs said that the HOggy Gee was sized wrong and was most likely near a 2.6" size. So I thought it might fit in a Sem XLW frame for a 24 x 2.6.


I have my old sem XLW frame lying around, and after reading about the upcoming Hoggy Gee tire as a possible trials tire, it got me wondering if I could essentially take the wheel (sun BFR rim)and frame from a Sem XLW and use the hoggy Gee as the tire and add 170 mm cranks. I have some Monty 158mm cranks lying around that I only used for 1 month and some sealed bearing snafu pedals.


A lot of threads talk about trials crank length for a typical 20" trials uni, but what about crank lengths for a 24" trials uni?

I still have my Gazz 2.6, but I wonder if the hoggy Gee will be better for trials instead of baby gazz.

My Muni has a 24" x 3.0 Gazz on it and 170mm cranks, but it's just over 16 lbs including Magura brakes. When I weighed my Sem XLW with the 2.6 gazz on it, when it was complete, it weighed in at around 13 lbs. I figure that's a light uni that would be kind of fun for light trials (drops under three feet).

Btw, this is a bargain basement uni concept, so Profiles are out of the question and wouldn't really be necessary due to my skill level and desire to stay low.

Please share your thoughts.

[Max_Dingemans]

Well, Iv been doing 24" trials for a year and a half now, and like the 165/170 mm size very much. I say 165 because for almost a year, and I really couldnt tell the big difference. so, I would say it's worth a try, especially with your monties. they should be fine if your not planning big drps or gaps.

[Mikefule]

With a big fat tyre like that, I guess the actual diameter of the wheel is nearer 26 inches than 24.

On a 26, 170s will provide loads of leverage for slow manoeuvres and stepping up/down obstacles.

170s are a bit slow and unwieldy for normal riding, though.

150s are a good all round size for a 24 or 26. i prefer something shorter, but then I do mostly cross country, mixed terrain, and some road work.

I guess longer cranks are more likely to snap if you do big jumps/drops.