Originally Posted by
Freeheeler1690
From kids racing in the UK.
I cannot post the website, but it's on kids racing co uk and under cranks. if you search it online
130mm: riders approx 120cm to 135cm tall
135mm: riders approx 125cm to 140cm tall
140mm: riders approx 130cm to 145cm tall
145mm: riders approx 135cm to 150cm tall
150mm: riders approx 140cm to 155cm tall
155mm: riders approx 145cm to 160cm tall
- HUP Kids Cranks
- Chainring BCD: 104mm, 4-bolt
- Installation: Single ChainringT
This crank is meant for a single chain ring though. Which is fine is you want to convert the bike to single chain ring (does the 8yo kid know how to change gears?), but not good if you want to retain the double chain rings in front.