2021 All-City Cycles Gorilla Monsoon GRX

	43cm	46cm	49cm	52cm	55cm	58cm	61cm
Stack	534mm	547mm	557mm	579mm	598mm	622mm	645mm
Reach	357mm	363mm	368mm	374mm	382mm	389mm	402mm
Stack to Reach Ratio	1.5:1	1.51:1	1.51:1	1.55:1	1.57:1	1.6:1	1.6:1
Seat Tube Length, C-TTT	415mm	445mm	475mm	510mm	540mm	570mm	600mm
Top Tube Length, Effective/Horizontal HT Top	505mm	520mm	528mm	545mm	565mm	585mm	605mm
Top Tube Slope	13.6deg	11.5deg	9.1deg	7.7deg	6.5deg	6deg	5.2deg
Head Tube Angle	70deg	71deg	71deg	71.5deg	71.5deg	71.5deg	71.5deg
Seat Tube Angle	74.5deg	74deg	74deg	73.5deg	73deg	72.5deg	72.5deg
Head Tube Length	115mm	125mm	135mm	155mm	175mm	200mm	225mm
Bottom Bracket Drop	62.5mm	62.5mm	62.5mm	62.5mm	62.5mm	62.5mm	62.5mm
Bottom Bracket Height	290.5mm	290.5mm	290.5mm	290.5mm	290.5mm	290.5mm	290.5mm
Chainstay Length	430mm	430mm	430mm	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	425.4mm	425.4mm	425.4mm	425.4mm	425.4mm	425.4mm	425.4mm
Front-Center	584.9mm	585.9mm	594.9mm	598.8mm	613.8mm	628.7mm	649.6mm
Front-Center Horizontal	581.6mm	582.6mm	591.6mm	595.6mm	610.6mm	625.6mm	646.6mm
Wheelbase	1007mm	1008mm	1017mm	1021mm	1036mm	1051mm	1072mm
Fork Offset/Rake	50mm	50mm	50mm	47mm	47mm	47mm	47mm
Fork Length (On-Axis)	395mm	395mm	395mm	395mm	395mm	395mm	395mm
Trail	75.3mm high	68.7mm high	68.7mm high	68.5mm high	68.5mm high	68.5mm high	68.5mm high
Mechanical Trail	70.7mm	64.9mm	64.9mm	65mm	65mm	65mm	65mm
Wheel Flop	24.2mm	21.1mm	21.1mm	20.6mm	20.6mm	20.6mm	20.6mm
Standover Height	711mm	735.5mm	758.2mm	788.3mm	813.4mm	840.1mm	866.8mm
Tire to Pedal Spindle	67mm 165 mm cranks	68mm 165 mm cranks	71.9mm 170 mm cranks	75.9mm 170 mm cranks	90.8mm 170 mm cranks	100.7mm 175 mm cranks	121.6mm 175 mm cranks
Pedal Spindle to Ground Clearance	125.5mm 165 mm cranks	125.5mm 165 mm cranks	120.5mm 170 mm cranks	120.5mm 170 mm cranks	120.5mm 170 mm cranks	115.5mm 175 mm cranks	115.5mm 175 mm cranks

	43cm	46cm	49cm	52cm	55cm	58cm	61cm
Wheel Size	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD
Tire Width	2.4in	2.4in	2.4in	2.4in	2.4in	2.4in	2.4in
Tire Width Max	2.4in	2.4in	2.4in	2.4in	2.4in	2.4in	2.4in
Tire Outer Diameter	705.9mm	705.9mm	705.9mm	705.9mm	705.9mm	705.9mm	705.9mm
Bike Length with Tires	1712.9mm	1713.9mm	1722.9mm	1726.9mm	1741.9mm	1756.9mm	1777.9mm
Crank Length	165mm	165mm	170mm	170mm	170mm	175mm	175mm
Handlebar Width	400mm	400mm	420mm	440mm	440mm	460mm	460mm
Stem Length	70mm	80mm	90mm	100mm	100mm	110mm	120mm

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

All-road/Gravel

Source:https://allcitycycles.com/bikes/gorilla_monsoon_grx

Suggest Bike Edit

2021 All-City Cycles Gorilla Monsoon GRX

Geometry

GRX Build

Stack and Reach vs. Category Trend