Compare: 2019 DENGFU R12 Base 49 vs 2025 TIME Alpe D' Huez Base XS

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of DENGFU R12

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of TIME Alpe D' Huez

Stack	508mm	514mm +6mm
Reach	374mm	372mm -2mm
Stack to Reach Ratio	1.36:1	1.38:1
Seat Tube Length, C-T	470mm	450mm -20mm
Top Tube Length, Effective/Horizontal Center	510mm	—
Top Tube Length, Actual C-C	—	513mm
Top Tube Slope	6.2deg	9.3deg +3.1deg
Head Tube Angle	71deg	71deg +0deg
Seat Tube Angle	75deg	74.7deg -0.3deg
Head Tube Length	105mm	122mm +17mm
Bottom Bracket Drop	71mm	65mm -6mm
Bottom Bracket Height	268mm	274mm +6mm
Chainstay Length	408mm	410mm +2mm
Chainstay Length Horizontal	401.8mm	404.8mm +3mm
Front-Center	574.2mm	576mm +1.8mm
Front-Center Horizontal	569.8mm	572.2mm +2.4mm
Wheelbase	971.6mm	977mm +5.4mm
Fork Offset/Rake	43mm	43mm +0mm
Fork Length (Axle-To-Crown)	—	368mm
Fork Length, Unknown	370mm	—
Trail	71.3mm high	71.3mm +0mm high
Mechanical Trail	67.4mm	67.4mm +0mm
Wheel Flop	21.9mm	21.9mm +0mm
Tire to Pedal Spindle	65.2mm 170 mm cranks	67mm +1.8mm 170 mm cranks
Pedal Spindle to Ground Clearance	98mm 170 mm cranks	104mm +6mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	28mm +0mm
Tire Outer Diameter	678mm	678mm +0mm
Bike Length with Tires	1649.6mm	1655mm +5.4mm
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	http://www.dengfubikes.com/ROAD_FRAME/248.html	https://shop.timebicycles.com/collections/sale-road-framesets/products/alpe-dhuez-disc-frameset
Brand	DENGFU	TIME
Bike	2019 R12 Base	2025 Alpe D' Huez Base
Size	49	XS
Category	Performance Road	Performance Road