I recently aquired 5 sets of 170mm Kooka cranks. I’m making one set for my Coker with pedal holes at 170mm, 145mm, 120mm. I’m having the 2 additional pedal holes drilled and tapped by a professional bike mechanic.
I’ll sell them drilled to those specs or to custom specs for $150 including shipping. Or will sell them undrilled with just the original 170mm holes for $110 also including shipping. These are brand new cranks. The spiders will be removed as they come off with the removal of 2 screws. No modifications are needed for these to work on a unicycle. I have 2 blue sets, and 2 silver sets for sale.
Just for repitition, I would like them if possible 130, 150, 170. Silver or blue. I have been looking for another set of Kookas for a while now. Where did you find five sets of them?
Tis a risk. But anyone proficient at unicycling (avoiding ankle hits) shouldn’t have a problem. The bigger risk would be catching on long pant legs and shoe laces. I don’t ride the Coker with long pants and I always tuck in my shoe laces so I’m not worried about it.
I was just about to order the daVinci three hole cranks. The daVinci’s are more expensive. I also like the look of the Kookas better than the daVinci’s.
It looks like the Seattle Area RiderS are going to have a corner on this Kooka order.
That’s muni. I’m not worried about laces getting caught on the muni. The Coker is a very different story. I always tuck the laces in on the Coker. I only sometimes tuck the laces in for muni. I almost always tuck the laces in for freestyle.
My “professional” bike mechanic turned out to be less then professional. I gave him the initial 2 sets of Kookas to him to drill and tap, one for me and one for Harper. This is a reputable bike shop here in town, and I was assured that it would be “no problem” to have done. Well after he got into it and found it was more than he could handle he got a most proficient machinist to finish the one set and completely do the other. The set done by the machinist is perfect. The set he finished for the bike guy, he did one crank completely which is perfect, and the other that he finished he could not make perfect. The 2 holes in the left crank are useable but not perfectly perpendicular. CRAP If someone wants these (blue) ones. $100 including shipping.
This bike guy was charging me $20 a set to drill and tap. (guess I should have known by that) Well I spoke with the machinist today for over an hour. He is a very interesting guy and a perfectionist and an artist. http://www.helveticadesigns.com/HELVETICA_bio.htmlHe will do the 6 remaining sets I have left for $65 each, this includes buying 2 quality taps (which he said the bike guys were not). I would really like to have him do them after seeing his work and the precision equipment he has. He guaranteed that his holes would as or more precise then the ones drilled by Kooka. And judging from his work and equipment I believe him.
I will then need to get $185 including delivery for the drilled Kookas. I’m sorry about this and understand if you want out, but I don’t want to take a lesser route after my first experience. Let me know if you are still interested. Here are pics of the finished cranks done by the machinist.
Here are pics of the blue ones that the bike guy drilled less then perfect on being perpendicular on the left crank. Also the back hole is not centered on the crank. He won’t be touching my remaining Kookas. You can see where I screwed in the pedals and one side of the shoulder hit before the other.
So if the pedal hole isn’t drilled perfectly perpendicular wouldn’t it be pretty much the same as riding with a bent pedal? That isn’t that big of a deal, after riding for a little bit you don’t notice anymore. I would think about getting them but I don’t own a cotterless uni.
So still available: 2 Blue and 2 Silver.
It will be at least a week before these get drilled and tapped.
tomblackwood, muddycycle, and cayennez have first dibs.
If I don’t get any further custom orders I’ll drill 2 at 120mm, 145mm, 170mm and 2 at 130mm. 150mm, 170mm
After speaking with Walter the machinist who is also an avid cyclist I learned alot about what’s involved in a seemingly simple operation. I’m glad that I’ll be able to confidently turn out a product that will stand up to professional scrutiny.
This all started when I thought I would get some Davinci cranks but didn’t like the way they looked. So when I found this horde of Kookas I thought, “hey I’ll make some of these gems available to the unicycle community, and cut the cost of my set”. Now it’s become a project and a learning experience with a bunch of money tied up. Well i’m enjoying it and in the long run if they all sell, I will have achieved both goals.
