Folding Bikes - Onza mini , upgrade suggestions please

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.



PDA
bhkyte
06-10-11, 04:26 AM
Hello
My children will not let me sell my ONZA MINI. Its cool?!
It has been great as anyone can ride it from 7 years up, due to massive amount of adjustment. good for school commute for my son if its impractical to leave the bike, as I can ride it home.
Fun for tricks in standard form ,but I have a couple of trials bikes also,
Its under geared (42/16 on 12 inch tyres) even for my 9 year son.
So When I have the time options include;

1) keep it standard
2) just put a 54tooth front on. Still low enough for trails riding tricking,but better for leisure use, commute.
3) Put two chain-rings on,use a chain tensioner, but no changer and change manually
4) convert to road bike like my Mezzo with bull bars,Tyre options??, 8 speed internal hub, really silly ,but fun idea?
5) single speed 56tooth and drop bars, bull bars, slimmer tyres for road. (Most likely option)

Any other ideas, other than scrapping it.

bendembroski
06-10-11, 09:42 AM
kickback 2 speed with a coaster brake.
fietsbob
06-10-11, 03:20 PM
a Schlumpf high-speed drive to be a big chainring in overdrive, but small physically..
a 27t=67.5t in overdrive range[2.5X]
they will take any square taper crankarm ... 2 without a chainring spider.

like tandems, the crossover drive, for the front uses a chainringless right hand threaded pedal hole
and a common left crank arm, has a left hand threaded pedal hole.

short arms ,no problem using 2 lefts, having a repair insert installed
to right hand thread a left hand pedal.

the crankarms turn slower than the chainring when the internal gear is engaged..

they've been made strong enough for fixies , it is said

fietsbob
06-10-11, 03:26 PM
perhaps make a Recumbent conversion kit? :rolleyes:
bhkyte
06-10-11, 03:45 PM
kickback 2 speed with a coaster brake.

Like that idea.
bhkyte
06-10-11, 03:47 PM
perhaps make a Recumbent conversion kit? :rolleyes:

Yes , sure, an Amphibious version obviously.