2026 Bulls Grinder 3

	S	M	L	XL
Stack	567mm	590mm	609mm	632mm
Reach	372mm	391mm	400mm	419mm
Stack to Reach Ratio	1.52:1	1.51:1	1.52:1	1.51:1
Seat Tube Length, C-T	450mm	480mm	520mm	560mm
Top Tube Length, Actual C-C	535mm	560mm	575mm	600mm
Top Tube Slope	15.2deg	13.8deg	11.4deg	9.3deg
Head Tube Angle	71deg	71deg	71deg	71deg
Seat Tube Angle	74deg	74deg	74deg	74deg
Head Tube Length	140mm	160mm	180mm	205mm
Bottom Bracket Drop	75mm	75mm	75mm	75mm
Bottom Bracket Height	281mm	281mm	281mm	281mm
Chainstay Length	440mm	440mm	440mm	440mm
Chainstay Length Horizontal	433.6mm	433.6mm	433.6mm	433.6mm
Front-Center	604.1mm	620mm	635.9mm	662.7mm
Front-Center Horizontal	599.4mm	615.4mm	631.4mm	658.4mm
Wheelbase	1033mm	1049mm	1065mm	1092mm
Fork Offset/Rake	54.9mm	44.5mm	45mm	45.1mm
Trail	64.6mm mid/neutral	75.5mm high	75mm high	74.9mm high
Mechanical Trail	61mm	71.4mm	70.9mm	70.9mm
Wheel Flop	19.9mm	23.2mm	23.1mm	23.1mm
Tire to Pedal Spindle	78.1mm 170 mm cranks	94mm 170 mm cranks	109.9mm 170 mm cranks	136.7mm 170 mm cranks
Pedal Spindle to Ground Clearance	111mm 170 mm cranks	111mm 170 mm cranks	111mm 170 mm cranks	111mm 170 mm cranks

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.

Category Trend

Source:https://www.bulls.de/de-de/produkt/bulls-grinder-3-2026-diamant?FARB=FARB_NNNSDEDP

Geometry