Mark's very special Handsling Bikes RR1

All of our bikes are special and personal to their owners but Mark's Handsling Bikes RR1 is the centre of a very special and interesting build. The chainset is from Turn with Praxis chainrings and bottom bracket; the wheels are from Hunt with tyres from Challenge; whilst the bars, stem and seatpost are from Ritchey; and the groupset is 10-speed Ultegra. Looks awesome! 

Mark has promised a full rundown on the build and a write up on how it rides...