2020 Twin Six Standard Rando Frameset 650b

	47cm	50cm	53cm	55cm	57cm	59cm
Stack	527mm	547mm	570mm	591mm	610mm	626mm
Reach	363mm	363mm	366mm	374mm	389mm	398mm
Stack to Reach Ratio	1.45:1	1.51:1	1.56:1	1.58:1	1.57:1	1.57:1
Seat Tube Length, Unknown	470mm	500mm	530mm	550mm	570mm	590mm
Top Tube Length, Effective/Horizontal Unknown	510mm	520mm	535mm	555mm	575mm	595mm
Top Tube Slope	8.6deg	7.6deg	6.8deg	6.9deg	6.7deg	6.3deg
Head Tube Angle	70deg	70.5deg	71.5deg	72deg	72deg	72.5deg
Seat Tube Angle	74.5deg	74deg	73.5deg	73deg	73deg	72.5deg
Head Tube Length	90mm	110mm	130mm	150mm	170mm	185mm
Bottom Bracket Drop	75mm	75mm	75mm	75mm	75mm	75mm
Bottom Bracket Height	265mm	265mm	265mm	265mm	265mm	265mm
Chainstay Length	435mm	435mm	435mm	435mm	435mm	435mm
Chainstay Length Horizontal	428.5mm	428.5mm	428.5mm	428.5mm	428.5mm	428.5mm
Front-Center	581mm	583mm	584mm	594mm	614mm	623mm
Front-Center Horizontal	576.5mm	578.5mm	579.5mm	589.5mm	609.5mm	618.5mm
Wheelbase	1005mm	1007mm	1008mm	1018mm	1038mm	1047mm
Fork Offset/Rake	45mm	45mm	45mm	45mm	45mm	45mm
Fork Length (Axle-To-Crown)	395mm	395mm	395mm	395mm	395mm	395mm
Trail	75.9mm high	72.7mm high	66.3mm high	63.2mm mid/neutral	63.2mm mid/neutral	60mm mid/neutral
Mechanical Trail	71.3mm	68.5mm	62.9mm	60.1mm	60.1mm	57.2mm
Wheel Flop	24.4mm	22.9mm	20mm	18.6mm	18.6mm	17.2mm
Standover Height	736mm	763mm	790mm	809mm	828mm	846mm
Tire to Pedal Spindle	71mm 170 mm cranks	73mm 170 mm cranks	69mm 175 mm cranks	79mm 175 mm cranks	99mm 175 mm cranks	108mm 175 mm cranks
Pedal Spindle to Ground Clearance	95mm 170 mm cranks	95mm 170 mm cranks	90mm 175 mm cranks	90mm 175 mm cranks	90mm 175 mm cranks	90mm 175 mm cranks

	47cm	50cm	53cm	55cm	57cm	59cm
Wheel Size	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD
Tire Width	48mm	48mm	48mm	48mm	48mm	48mm
Tire Outer Diameter	680mm	680mm	680mm	680mm	680mm	680mm
Bike Length with Tires	1685mm	1687mm	1688mm	1698mm	1718mm	1727mm
Crank Length	170mm	170mm	175mm	175mm	175mm	175mm
Handlebar Width	420mm	420mm	440mm	440mm	460mm	460mm
Stem Length	90mm	90mm	100mm	100mm	110mm	110mm

Published Sizing Recommendations

Height

4 ft 10 in

5 ft 2 in

5 ft 6 in

5 ft 9 in

5 ft 11 in

6 ft 1 in

6 ft 5 in

Very Upright

Somewhat Upright

Average

Somewhat Aggressive

Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

Category Trend

Source:https://www.twinsix.com/collections/bikes-bits/products/standard-rando-frameset-red?variant=8200806137953