Genesis Flyer 2021 Road Bike Now based on Genesis' best-selling CDA frameset, the Flyer now features a double-butted alloy tubeset at its heart. Throw in some disc brakes and clearance for wide tyres and you now have the ultimate foul weather winter bike. Key Features Double-butted alloy tubeset is a clever mix of two differing grade alloys giving high levels of stiffness in certain areas and compliance and flex in others Simple singlespeed set-up means minimal maintenance, cleaning and adjustment Promax disc brakes for all-weather braking performance Maxxis Overdrive Excel tyres Genesis Flyer Size Guide The sizing below is a guide only, so please get in touch if you're unsure or between sizes. Height is in feet and inches. Extra Small - 5' 2" - 5' 5" Small - 5' 5" to 5' 7" Medium - 5' 7" to 5' 10" Large - 5' 9" to 6' 0" Extra Large - 6' 0" to 6' 3" Why Buy From Us? Rated excellent on Trustpilot by our customers Free bike delivery No fuss returns Bikes arrive built by expert bike mechanics Independent since 1977 - cooperative, not corporate. Read our story . Shop All Genesis Bikes >