2023 Bulls Grinder 4
- Category
- All-road/Gravel
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Aluminum
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
47cm | 51cm | |
Stack | 599mm | 626mm |
Reach | 398mm | 407mm |
Stack to Reach Ratio | 1.51:1 | 1.54:1 |
Seat Tube Length, C-T | 470mm | 510mm |
Top Tube Length, Effective/Horizontal HT Top | 570mm | 587mm |
Top Tube Slope | 15.6deg | 13.9deg |
Head Tube Angle | 71deg | 71deg |
Seat Tube Angle | 74deg | 74deg |
Bottom Bracket Drop | 70mm | 70mm |
Bottom Bracket Height | 281mm | 281mm |
Chainstay Length | 420mm | 420mm |
Chainstay Length Horizontal | 414.1mm | 414.1mm |
Front-Center | 631.8mm | 650.7mm |
Front-Center Horizontal | 627.9mm | 646.9mm |
Wheelbase | 1042mm | 1061mm |
Fork Offset/Rake | 45.1mm | 45.8mm |
Trail | 73.1mm high | 72.4mm high |
Mechanical Trail | 69.2mm | 68.5mm |
Wheel Flop | 22.5mm | 22.3mm |
Tire to Pedal Spindle | 108.3mm 172.5 mm cranks | 127.2mm 172.5 mm cranks |
Pedal Spindle to Ground Clearance | 108.5mm 172.5 mm cranks | 108.5mm 172.5 mm cranks |
4 Build
47cm | 51cm | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 40mm | 40mm |
Tire Width Max | 40mm | 40mm |
Tire Outer Diameter | 702mm | 702mm |
Bike Length with Tires | 1744mm | 1763mm |
Crank Length | 172.5mm | 172.5mm |
Stack and Reach vs. Category Trend
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 ScaleCategory Trend
All-road/GravelSource:https://www.bulls-bikes.com/gb-en/product/bulls-grinder-4-2023-diamant?FARB=FARB_WY3LHL4P&RHOE=RHOE_00000900