In process MOC Technic bike I made for my 3 year old to play with. Mostly parts from 42011 Race Car. Front and rear suspension and you can wind it up! : r/lego
LEGO Technic 42011 - Race Car - DECOTOYS
Review: LEGO Technic 42011 'Race Car' - Lewis Leong
Just done - LEGO Race Car and Hovercraft - LEGO Reviews & Videos
LEGO 42011 Technic V12 F1 Racing Race Car +BNIP 30190 FERRARI 150+ All Pull-Back | eBay
LEGO 42011 Race Car Instructions, Technic
Race Car : Set 42011-1 | BrickLink
LEGO Technic pull-back race car #42011, No Box, Instructions Online | eBay