2025 3.0 Ari Bicycles (Fezzari) Shafer Base

	XS	XS	S	S	M	M	L	L	XL	XL
Stack	550mm	550mm	560mm	560mm	585mm	585mm	615mm	615mm	635mm	635mm
Reach	368mm	368mm	387mm	387mm	400mm	400mm	410mm	410mm	423mm	423mm
Stack to Reach Ratio	1.49:1	1.49:1	1.45:1	1.45:1	1.46:1	1.46:1	1.5:1	1.5:1	1.5:1	1.5:1
Seat Tube Length, C-T	420mm	420mm	450mm	450mm	480mm	480mm	510mm	510mm	540mm	540mm
Top Tube Length, Actual C-C	525mm	525mm	545mm	545mm	565mm	565mm	585mm	585mm	605mm	605mm
Top Tube Slope	16.8deg	16.8deg	14deg	14deg	13.1deg	13.1deg	12.8deg	12.8deg	11.5deg	11.5deg
Head Tube Angle	69deg	69deg	69deg	69deg	69deg	69deg	69deg	69deg	69deg	69deg
Seat Tube Angle	74deg	74deg	74deg	74deg	74deg	74deg	74deg	74deg	74deg	74deg
Effective Seat Tube Angle, Seat Tube Top	71.6deg	71.6deg	72.3deg	72.3deg	72.8deg	72.8deg	73.3deg	73.3deg	73.8deg	73.8deg
Head Tube Length	84mm	84mm	95mm	95mm	121mm	121mm	154mm	154mm	175mm	175mm
Bottom Bracket Drop	78mm	78mm	78mm	78mm	78mm	78mm	78mm	78mm	78mm	78mm
Bottom Bracket Height	283mm	283mm	283mm	283mm	283mm	283mm	283mm	283mm	283mm	283mm
Chainstay Length	425mm	425mm	428mm	428mm	431mm	431mm	435mm	435mm	440mm	440mm
Chainstay Length Horizontal	417.8mm	417.8mm	420.8mm	420.8mm	423.9mm	423.9mm	428mm	428mm	433mm	433mm
Front-Center	608.2mm	608.2mm	630mm	630mm	652.8mm	652.8mm	674.6mm	674.6mm	695.4mm	695.4mm
Front-Center Horizontal	603.2mm	603.2mm	625.2mm	625.2mm	648.1mm	648.1mm	670.1mm	670.1mm	691mm	691mm
Wheelbase	1021mm	1021mm	1046mm	1046mm	1072mm	1072mm	1098mm	1098mm	1124mm	1124mm
Fork Offset/Rake	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm
Fork Length (Axle-To-Crown)	440mm	440mm	440mm	440mm	440mm	440mm	440mm	440mm	440mm	440mm
Trail	85mm very high	85mm very high	85mm very high	85mm very high	85mm very high	85mm very high	85mm very high	85mm very high	85mm very high	85mm very high
Mechanical Trail	79.4mm	79.4mm	79.4mm	79.4mm	79.4mm	79.4mm	79.4mm	79.4mm	79.4mm	79.4mm
Wheel Flop	28.4mm	28.4mm	28.4mm	28.4mm	28.4mm	28.4mm	28.4mm	28.4mm	28.4mm	28.4mm
Standover Height	730mm	730mm	750mm	750mm	770mm	770mm	800mm	800mm	825mm	825mm
Tire to Pedal Spindle	77.2mm 170 mm cranks	77.2mm 170 mm cranks	99mm 170 mm cranks	104mm 165 mm cranks	121.8mm 170 mm cranks	121.8mm 170 mm cranks	143.6mm 170 mm cranks	143.6mm 170 mm cranks	164.4mm 170 mm cranks	164.4mm 170 mm cranks
Pedal Spindle to Ground Clearance	113mm 170 mm cranks	113mm 170 mm cranks	113mm 170 mm cranks	118mm 165 mm cranks	113mm 170 mm cranks	113mm 170 mm cranks	113mm 170 mm cranks	113mm 170 mm cranks	113mm 170 mm cranks	113mm 170 mm cranks

	XS	XS	S	S	M	M	L	L	XL	XL
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm
Tire Outer Diameter	722mm	722mm	722mm	722mm	722mm	722mm	722mm	722mm	722mm	722mm
Bike Length with Tires	1743mm	1743mm	1768mm	1768mm	1794mm	1794mm	1820mm	1820mm	1846mm	1846mm
Crank Length	—	—	—	165mm	—	—	—	—	—	—
Handlebar Width	—	—	—	44mm	—	—	—	—	—	—
Stem Length	—	—	—	80mm	—	—	—	—	—	—

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.

Learn more about the Upright/Aggressive Scale

Category Trend

Progressive Gravel

Source:https://aribikes.com/products/shafer?srsltid=AfmBOoqwatlylXEx4JtvNv3vv1JXKbcbrtt_zgkW_44UWyJwyoVje5Dc, https://aribikes.com/products/shafer?srsltid=AfmBOoqowRqFfeZmW4PlhSOmEnJk651MiGJCTG5iyegjp3-LC_zthsJb

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2025 3.0 Ari Bicycles (Fezzari) Shafer Base

Geometry

Base Build

Stack and Reach vs. Category Trend