Compare: 2022 TanTan Cycling (Seraph) GR047 Base XL vs 2026 OPEN Cycle U.P. 2.0 XL

Insights

Average stack and reach vs trend of all-road/gravel bikes

Design deviates from other sizes of TanTan Cycling (Seraph) GR047

Average stack and reach vs trend of all-road/gravel bikes

Design deviates from other sizes of OPEN Cycle U.P.

Stack	633mm	620mm -13mm
Reach	401mm	404mm +3mm
Stack to Reach Ratio	1.58:1	1.53:1
Seat Tube Length, C-T	530mm	518mm -12mm
Top Tube Length, Effective/Horizontal HT Top	600mm	584mm -16mm
Top Tube Slope	12.8deg	12.6deg -0.2deg
Head Tube Angle	72deg	72.5deg +0.5deg
Seat Tube Angle	72.6deg	73.5deg +0.9deg
Head Tube Length	200mm	—
Bottom Bracket Drop	76mm	72mm -4mm
Bottom Bracket Height	280mm	284mm +4mm
Chainstay Length	430mm	425mm -5mm
Chainstay Length Horizontal	423.2mm	418.9mm -4.3mm
Front-Center	639mm	634mm -5mm
Front-Center Horizontal	634.5mm	630.1mm -4.4mm
Wheelbase	1057.7mm	1049mm -8.7mm
Fork Offset/Rake	50mm	50mm +0mm
Trail	63.1mm mid/neutral	59.8mm -3.3mm mid/neutral
Mechanical Trail	60mm	57.1mm -2.9mm
Wheel Flop	18.5mm	17.2mm -1.3mm
Standover Height	—	815mm
Tire to Pedal Spindle	110.5mm 172.5 mm cranks	108mm -2.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	107.5mm 172.5 mm cranks	114mm +6.5mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	45mm	45mm +0mm
Tire Outer Diameter	712mm	712mm +0mm
Bike Length with Tires	1769.7mm	1761mm -8.7mm
Crank Length	172.5mm	—
Handlebar Width	440mm	—
Stem Length	110mm	—
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Carbon/Composite	Carbon/Composite
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Disc

Actions	Collection I've Ridden	Collection I've Ridden
Source	https://ae01.alicdn.com/kf/S5c9de74c1c93417789372a5bf39abc6fB.jpg	https://opencycle.com/upper-20
Brand	TanTan Cycling (Seraph)	OPEN Cycle
Bike	2022 GR047 Base	2026 U.P. 2.0
Size	XL	XL
Category	All-road/Gravel	All-road/Gravel