Technical & Reference Section > Tech and Restoration

Mini build questions

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Frosty:
Having never built a little uns bike before I'll seek some guidance on a couple of things from you folks

I have some flip flop hubs and need and idea of the gearing that I should run for the bike, ie each side and also the chainring size?

With regards to the rear brake, will I need a road race caliper or  will a DC 890 suffice?

That's all, these are the last parts I need to get before building starts.

Thanks

Paul

kdw712:
i am building a bike for my daughter
and initially gonna use 41t up front with 16t rear
and 155mm cranks

Nosnod:
I built a mini for my lad and used 40 - 16 gearing with 152mm length cranks

With regard to the brake just fit the wheel where you want it and then measure the brake reach to see if you need a special mini road caliper. in most cases you should be OK, I used a DC 890 with no probs.

silentpartner:
my nine year old runs 36/15 alot of the time as this gives him better accelleration out the gate, and quicker pick up, but sometimes he loose's out on top end on really long tracks. brake wise its what fits best. on my old school mini i'm using weinmann 730, but 890's are excellent.
alan  ;)

Frosty:
Thankyou all, I'll have to wait until I have built her up before spec'ing the brakes, but gearings wise, I'll use your infor and do some calcs.

Regards

paul

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