2021 Bulls Grinder Trail Grinder 55 cm
Build
650B/27.5 in × 47 mm
Insights
Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Bulls Grinder
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 595mm |
| Reach | 395mm |
| Stack to Reach Ratio | 1.51:1 |
| Seat Tube Length, C-T | 550mm |
| Top Tube Length, Effective/Horizontal Center | 571mm |
| Top Tube Slope | 7deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 73.5deg |
| Bottom Bracket Drop | 75mm |
| Bottom Bracket Height | 264mm |
| Chainstay Length | 440mm |
| Chainstay Length Horizontal | 433.6mm |
| Front-Center | 635.9mm |
| Front-Center Horizontal | 631.4mm |
| Wheelbase | 1065mm |
| Fork Offset/Rake | 49.3mm |
| Trail | 67.8mm high |
| Mechanical Trail | 63.9mm |
| Wheel Flop | 21.3mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 126.9mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 94mm |
Trail Grinder Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 47mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1743mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Unknown |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.bulls.de/de-de/produkt/bulls-trail-grinder-diamant?FARB=FARB_GL5TZHRM&RHOE=RHOE_55