| Frame Size | S | M | L | XL |
| Estimated Rider Height | 161cm - 170cm | 170cm - 180cm | 180cm - 190cm | 190cm - 200cm |
| Specified Rider Height | ||||
| Class | Gravel | Gravel | Gravel | Gravel |
| Style | rowdy | rowdy | rowdy | rowdy |
| Material | aluminum | aluminum | aluminum | aluminum |
| Fork | rigid | rigid | rigid | rigid |
| Handlebar | drop bar | drop bar | drop bar | drop bar |
| Suspension Correction | 30 mm | 30 mm | 30 mm | 30 mm |
| Top Tube Effective Length | 546 | 569 | 587 | 610 |
| Effective Top Tube Length (Est) | 545.8786 | 568.7605 | 586.5026 | 610.0978 |
| Reach | 381 | 397 | 407 | 424 |
| Stack | 575 | 599 | 626 | 649 |
| Standover | ||||
| Head Tube Angle | 71 | 71 | 71 | 71 |
| Seat Tube Angle | 74 | 74 | 74 | 74 |
| Chainstay Length | 435 | 435 | 435 | 435 |
| Front Center | 603 | 627 | 647 | 671 |
| Bottom Bracket Drop | 70 | 70 | 70 | 70 |
| Trail | 75 | 75 | 74 | 75 |
| Trail 45 | 75 | 75 | 74 | 75 |
| UDH | YES | YES | YES | YES |
| Tire Width Max 700c | 50 | 50 | 50 | 50 |
| Tire Width Max 650b | 0 | 0 | 0 | 0 |
| Axle Spacing | 142 (road) | 142 (road) | 142 (road) | 142 (road) |
| Stealth Dropper | NO/Unknown | NO/Unknown | NO/Unknown | NO/Unknown |
| Seatpost Diameter | 72.2 | 72.2 | 72.2 | 72.2 |
| Max Chainring 1x | ||||
| Dropout | fixed | fixed | fixed | fixed |
| Internal Storage | ||||
| Frame Weight | ||||
| Base Build USD | $1382 | $1382 | $1382 | $1382 |
| Frameset USD | ||||
| Location | Cologne, Germany | Cologne, Germany | Cologne, Germany | Cologne, Germany |
Bulls Grinder 2025
Brand: Bulls
Model: Grinder
Year: 2025
Category: Gravel
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