Compare: 2026 Giant Bicycles Propel Advanced Pro M vs 2025 SPCYCLE SP-R066 Base L

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Giant Bicycles Propel Advanced

Average stack and reach vs trend of performance road bikes

Stack	545mm	545mm +0mm
Reach	388mm	387mm -1mm
Stack to Reach Ratio	1.4:1	1.41:1
Seat Tube Length, C-T	520mm	520mm +0mm
Top Tube Length, Effective/Horizontal HT Top	—	543mm
Top Tube Length, Effective/Horizontal Unknown	550mm	—
Top Tube Slope	5deg	4.9deg -0.1deg
Head Tube Angle	73deg	72deg -1deg
Seat Tube Angle	73.5deg	74deg +0.5deg
Head Tube Length	145mm	140mm -5mm
Bottom Bracket Drop	70mm	72mm +2mm
Bottom Bracket Height	269mm	271mm +2mm
Chainstay Length	405mm	408mm +3mm
Chainstay Length Horizontal	398.9mm	401.6mm +2.7mm
Front-Center	585.3mm	593mm +7.7mm
Front-Center Horizontal	581.1mm	588.4mm +7.3mm
Wheelbase	980mm	990mm +10mm
Fork Offset/Rake	45mm	45mm +0mm
Fork Length, Unknown	—	371mm
Trail	56.6mm mid/neutral	64.1mm +7.5mm mid/neutral
Mechanical Trail	54.1mm	61mm +6.9mm
Wheel Flop	15.8mm	18.9mm +3.1mm
Standover Height	775mm	793mm +18mm
Tire to Pedal Spindle	73.8mm 172.5 mm cranks	80mm +6.2mm 170 mm cranks
Pedal Spindle to Ground Clearance	96.5mm 172.5 mm cranks	101mm +4.5mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	32mm +4mm
Tire Width Max	—	32mm
Tire Outer Diameter	678mm	686mm +8mm
Bike Length with Tires	1658mm	1676mm +18mm
Crank Length	172.5mm	—
Handlebar Width	420mm	—
Stem Length	100mm	—
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