Shimano uses their Rhythm Step Gear Progression which gives you the best possible gear combo and ratio

Q-Factor: 54mm

It has a built in forming tool for reforming cable ends and comes with a crimper for those all important cable and housing end caps

Leave your wallet at home with this awesome multi-tool from Blackburn

Changing to a new axle size

Lazer MAX+ Kids Helmet - Youth - One Size Fits Most - Shark PDP|Colour Shimano uses their Rhythm StepThe Lazer Max+ helmet is a classic helmet and is now even better with its updated fitment system and awesome new designs. These are a top quality in mold kids helmet that offers fantastic protection for little shredders as well as enough adjustment to suit them for a few years. Well ventilated and lightweight this helmet can be worn by a toddler without fuss. Features: TS+ Turnfit System In Mold construction 11 vents Weight 295g Kids unisize (49 56