If thats the case, I guess I can offset the seat tube. What Im really wondering is, is it possible to have to short of a wheelbase as far as handling is concerned. Besides the obvious toe overlap.
Frame Geo?
I decide to go with a Marino custom build for my new polo bike, but before I pull the trigger on a design I'd love to see what more exp. polo players think. I've been screwing around with BikeCad a little, but Im not a geo wiz and I am not really sure if this will work even. So I was hoping to get some +/- feedback, and see what people think of these 2 designs.
Ideally I would like the shortest possible wheelbase for a 700c bike frame w/38c - 45c tires. Some things I am still debating on changing are the chain stay lgth and the HT angle to 74.5. I was also thinking of bending the DT a little to get more tire clearance. The rear dropout will be horizontal. A Q. I do have is, how low do you think I can get the BB before I have to start worrying about pedal strikes, I will be running bmx 155 crank arms? If I left anything out let me know, any feedback would be appreciated.
What Im really wondering is, is it possible to have to short of a wheelbase as far as handling is concerned.
It really just depends. Shortening the rear triangle will change your weight distribution on your bike. For instance, my Marino has 365mm chainstays, and that's short enough to make it wheelie with almost too much ease, as almost all my weight is over the rear wheel. That's exactly what I wanted, but if you're not used to it, you can literally torque yourself off your bike.
ok, thanks. so if i would run into that problem, I could extend my stem to center my weight, right?
I've changed my design some more since I posted this. Cant wait to get this start.
I wouldn't count it out without asking him, this is what he made me:
Sick. It looks like you got a big bend there. I just emailed him my final design, asking him if he could do it. Heres to keeping your fingers crossed. Are you getting the fork as well?
Im going to get a fork and I seen on fb that he is making handlebars as well.
I had this frame a long time ago and it broke on the curve. Actually my friend that owns the bike shop I took it back to said almost all of them made like this broke. I wonder if Marino will have any replacement program if it starts happening to these bikes too. Some how I doubt it.
Cracking or breaking? I picked up one of these for cheap the other day. What is happening on the curve? the weld? the tubing? It has a 1 1/4 headtube and a proprietary bottom bracket are the issues I see with it so far.
The description sounds perfect for polo though..
"Fisher used the curved seat tube and elevated stays to shorten the "chain stay" length to 15.5". The steep head angle and long top tube combine with the short stays to redefine the concept of free climbing and bike ballet. It allows the rider to use his or her body on technical trails in a way that are impossible, or at least very difficult, with other mountain bikes."
Mine broke on the curve just below the chain stays. The day it broke I had left it out in the hot sun all day then got on it and started riding. A mile later it just came apart. I don't know if middle of the summer hot sun could have anything to do with it but I imagined it did. Maybe the location of the chain stays also played a role. I think 1 1/4 headset and stems have kind of made a comeback. Also the bottom bracket is just sealed bearings held in with a c clip so that shouldn't be any problem to find parts. Should be a fine polo bike, maybe park it in the shade.
From your descriptions, it sounds like it broke in the HAZ, or the heat affected zone. This area is prone to failure if over heated during welded and/or not properly post-weld treated. On the larger scale of things, shade or lack thereof didn't do much to it. Cyclic loading of crashing, mounting, dismounting, accelerating, etc overloaded that area and started a crack and that crack worked it's way larger through those same forces until failure.
I mean, it's a 20 year old mountain bike. They're going to break eventually. The sun had nothing to do with it.
Oh, and 1 1/4" threaded headsets and stems have definitely not made a comeback.
Ya but a hardtail MB takes alot of abuse. lets hope it doesnt happen.
Our newbies get custom polo frames after playing for a month.
How seriously does your city take bike polo? I think we'll be finding out shortly....
i don't think the guy at marino can do curves that are that big. look at the other bikes that people have got from him for an idea of what he can do. as for the rest of the geo, i'm not the best guy to ask.