2024 Backroads Next Generation Performance Road Bike Base - Bike Insights

	45cm	51cm	54cm	57cm	60cm	64cm
Seat Tube Length, C-T	420mm	480mm	510mm	540mm	570mm	610mm
Top Tube Length, Effective/Horizontal Center	512mm	521mm	537mm	558mm	576mm	600mm
Head Tube Angle	71deg	71.5deg	72deg	72.5deg	73deg	73deg
Seat Tube Angle	74.5deg	74deg	73.5deg	72.5deg	72deg	72deg
Head Tube Length	135mm	145mm	165mm	185mm	210mm	230mm
Bottom Bracket Height	—	—	—	—	—	—
Chainstay Length	425mm	425mm	425mm	425mm	425mm	425mm
Wheelbase	986mm	986mm	993mm	998mm	1005mm	1028mm
Fork Offset/Rake	43mm	43mm	43mm	43mm	43mm	43mm
Trail	72.6mm high	69.4mm high	66.2mm high	63.1mm mid/neutral	59.9mm mid/neutral	59.9mm mid/neutral
Mechanical Trail	68.7mm	65.8mm	63mm	60.1mm	57.3mm	57.3mm
Wheel Flop	22.4mm	20.9mm	19.5mm	18.1mm	16.8mm	16.8mm
Standover Height	675.6mm	711.2mm	762mm	787.4mm	812.8mm	843.3mm

	45cm	51cm	54cm	57cm	60cm	64cm
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	32mm	32mm	32mm	32mm	32mm	32mm
Tire Outer Diameter	686mm	686mm	686mm	686mm	686mm	686mm
Bike Length with Tires	1672mm	1672mm	1679mm	1684mm	1691mm	1714mm
Crank Length	170mm	170mm	172.5mm	172.5mm	175mm	175mm
Handlebar Width	380mm	400mm	420mm	420mm	440mm	440mm
Stem Length	80mm	80mm	100mm	110mm	110mm	120mm

Published Sizing Recommendations

Height

4 ft 10 in

to

5 ft 2 in

5 ft 2 in

to

5 ft 6 in

5 ft 6 in

to

5 ft 9 in

5 ft 10 in

to

6 ft 2 in

6 ft 2 in

to

6 ft 4 in

6 ft 4 in

to

Source:https://www.backroads.com/why/great-gear/bike-specs#performance2.0

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