2025 Grind Cycles GR1ST Base
- Category
- All-road/Gravel
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Carbon/Composite
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
XS | S | M | L | XL | XXL | |
Stack | 537mm | 557mm | 568mm | 590mm | 609mm | 628mm |
Reach | 371mm | 375mm | 376mm | 385mm | 394mm | 403mm |
Stack to Reach Ratio | 1.45:1 | 1.49:1 | 1.51:1 | 1.53:1 | 1.55:1 | 1.56:1 |
Seat Tube Length, C-T | 490mm | 520mm | 540mm | 560mm | 580mm | 610mm |
Top Tube Length, Effective/Horizontal HT Top | 520mm | 535mm | 550mm | 565mm | 580mm | 595mm |
Top Tube Slope | 7.4deg | 6.3deg | 5.5deg | 5.7deg | 5.5deg | 4.4deg |
Head Tube Angle | 70.5deg | 71deg | 71.5deg | 72deg | 72deg | 72deg |
Seat Tube Angle | 74.5deg | 74deg | 73deg | 73deg | 73deg | 73deg |
Head Tube Length | 120mm | 140mm | 150mm | 170mm | 190mm | 210mm |
Bottom Bracket Drop | 67mm | 67mm | 67mm | 67mm | 67mm | 67mm |
Bottom Bracket Height | 289mm | 289mm | 289mm | 289mm | 289mm | 289mm |
Chainstay Length | 435mm | 435mm | 435mm | 435mm | 435mm | 435mm |
Chainstay Length Horizontal | 429.8mm | 429.8mm | 429.8mm | 429.8mm | 429.8mm | 429.8mm |
Front-Center | 594mm | 595mm | 600mm | 611mm | 626mm | 641mm |
Front-Center Horizontal | 590.2mm | 595.2mm | 595.2mm | 607.2mm | 622.2mm | 638.2mm |
Wheelbase | 1020mm | 1025mm | 1025mm | 1037mm | 1052mm | 1068mm |
Fork Offset/Rake | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm |
Fork Length, Unknown | 395mm | 395mm | 395mm | 395mm | 395mm | 395mm |
Trail | 73mm high | 69.7mm high | 66.4mm high | 63.1mm mid/neutral | 63.1mm mid/neutral | 63.1mm mid/neutral |
Mechanical Trail | 68.8mm | 65.9mm | 63mm | 60mm | 60mm | 60mm |
Wheel Flop | 23mm | 21.5mm | 20mm | 18.5mm | 18.5mm | 18.5mm |
Standover Height | 759mm | 786mm | 803mm | 823mm | 843mm | 863mm |
Tire to Pedal Spindle | 73mm 165 mm cranks | 69mm 170 mm cranks | 74mm 170 mm cranks | 82.5mm 172.5 mm cranks | 97.5mm 172.5 mm cranks | 110mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 124mm 165 mm cranks | 119mm 170 mm cranks | 119mm 170 mm cranks | 116.5mm 172.5 mm cranks | 116.5mm 172.5 mm cranks | 114mm 175 mm cranks |
Base Build
XS | S | M | L | XL | XXL | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm |
Tire Width Max | 50mm | — | — | — | — | — |
Tire Outer Diameter | 712mm | 712mm | 712mm | 712mm | 712mm | 712mm |
Bike Length with Tires | 1732mm | 1737mm | 1737mm | 1749mm | 1764mm | 1780mm |
Crank Length | 165mm | 170mm | 170mm | 172.5mm | 172.5mm | 175mm |
Handlebar Width | 380mm | 400mm | 400mm | 420mm | 440mm | 440mm |
Stem Length | 80mm | 90mm | 100mm | 110mm | 120mm | 130mm |
Stem Angle | -6deg | -6deg | -6deg | -6deg | -6deg | -6deg |
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://grindcycles.com/collections/bikes