Shimano SM-BBR60 Ultegra / FC-CX70 / 105 Hollowtech II Bottom Bracket babyseat The included heavy-duty disc mount

The included heavy-duty disc mount rack features an innovative BabySeat attachment that requires no tools to attach and remove seat from rack

Like every Trek hybrid

16T Handlebar 6061 aluminum BMX Stem BMX aheadset style 4-Bolt Seat BMX style padded Seat Post 27

Designed for use with Thule T2

this bike’s highly responsive V-brake teaches kids early how to use hand brakes like those found on adult bikes

Shimano SM-BBR60 Ultegra / FC-CX70 / 105 Hollowtech II Bottom Bracket babyseat The included heavy-duty disc mountShimano Ultegra BB72, BBR60 Hollowtech II Bottom Brackets Reduced size for light weight New seal construction for smoother rotation Requires TL FC37 bottom bracket tool for installation (Sold Separately)