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

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Giant Bicycles Propel Advanced

Stack	524mm	517mm -7mm
Reach	377mm	376mm -1mm
Stack to Reach Ratio	1.39:1	1.38:1
Seat Tube Length, C-T	500mm	465mm -35mm
Top Tube Length, Effective/Horizontal HT Top	527mm	—
Top Tube Length, Effective/Horizontal Unknown	—	520mm
Top Tube Slope	4.8deg	7.8deg +3deg
Head Tube Angle	71.5deg	71deg -0.5deg
Seat Tube Angle	74deg	74.5deg +0.5deg
Head Tube Length	120mm	120mm +0mm
Bottom Bracket Drop	72mm	72mm +0mm
Bottom Bracket Height	271mm	267mm -4mm
Chainstay Length	408mm	405mm -3mm
Chainstay Length Horizontal	401.6mm	398.6mm -3mm
Front-Center	580mm	581.9mm +1.9mm
Front-Center Horizontal	576.4mm	577.5mm +1.1mm
Wheelbase	978mm	976mm -2mm
Fork Offset/Rake	45mm	45mm +0mm
Fork Length, Unknown	371mm	—
Trail	67.3mm high	69.1mm +1.8mm high
Mechanical Trail	63.8mm	65.4mm +1.6mm
Wheel Flop	20.3mm	21.3mm +1mm
Standover Height	773mm	734mm -39mm
Tire to Pedal Spindle	67mm 170 mm cranks	72.9mm +5.9mm 170 mm cranks
Pedal Spindle to Ground Clearance	101mm 170 mm cranks	97mm -4mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	32mm	28mm -4mm
Tire Outer Diameter	686mm	678mm -8mm
Bike Length with Tires	1664mm	1654mm -10mm
Crank Length	—	170mm
Handlebar Width	—	400mm
Stem Length	—	80mm
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://www.giant-bicycles.com/md/propel-advanced-sl-team-frameset-2026
Brand	SPCYCLE	Giant Bicycles
Bike	2025 SP-R066 Base	2026 Propel Advanced Pro
Size	M	XS
Category	Performance Road	Performance Road