2020 Gunnar Cycles USA RockTour II 29er Base
- Category
- Off-road Touring
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Steel
- Features
- Disc brake
Very aggressive stack and reachvs category | Very aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category | Average stack and reachvs category | Somewhat aggressive stack and reachvs category | Average stack and reachvs category | Somewhat upright stack and reachvs category |
Geometry
13.5 | 15.0 | 16.5 | 17.5 | 19.0 (27.5") | 19.0 (29") | 20.5 (27.5") | 20.5 (29") | 23.0 | 25.0 | |
Stack | 523mm | 527mm | 547mm | 571mm | 583mm | 585mm | 619mm | 611mm | 647mm | 675mm |
Reach | 380mm | 384mm | 378mm | 376mm | 387mm | 387mm | 390mm | 393mm | 396mm | 402mm |
Stack to Reach Ratio | 1.38:1 | 1.37:1 | 1.45:1 | 1.52:1 | 1.51:1 | 1.51:1 | 1.59:1 | 1.55:1 | 1.63:1 | 1.68:1 |
Seat Tube Length, Unknown | 343mm | 381mm | 420mm | 445mm | 483mm | 483mm | 520mm | 522mm | 584mm | 625mm |
Top Tube Length, Effective/Horizontal Unknown | 520mm | 530mm | 530mm | 540mm | 560mm | 560mm | 580mm | 580mm | 600mm | 615mm |
Top Tube Slope | 22.7deg | 18deg | 16.5deg | 15.6deg | 11.6deg | 11.9deg | 11.5deg | 10.4deg | 8.6deg | 6.3deg |
Head Tube Angle | 70.5deg | 70.5deg | 70deg | 70deg | 70deg | 70.5deg | 70deg | 70.5deg | 70.5deg | 70.5deg |
Seat Tube Angle | 75deg | 74.5deg | 74.5deg | 74deg | 73.5deg | 73.5deg | 73deg | 73deg | 72.5deg | 72.5deg |
Head Tube Length | 110mm | 115mm | 110mm | 135mm | 149mm | 125mm | 187mm | 151mm | 189mm | 219mm |
Bottom Bracket Drop | 50mm | 50mm | 65mm | 65mm | 65mm | 75mm | 65mm | 75mm | 75mm | 75mm |
Bottom Bracket Height | 287.5mm | 287.5mm | 285mm | 285mm | 285mm | 294mm | 285mm | 294mm | 294mm | 294mm |
Chainstay Length | 440mm | 440mm | 450mm | 450mm | 450mm | 460mm | 450mm | 460mm | 460mm | 460mm |
Chainstay Length Horizontal | 437.2mm | 437.2mm | 445.3mm | 445.3mm | 445.3mm | 453.8mm | 445.3mm | 453.8mm | 453.8mm | 453.8mm |
Front-Center | 602mm | 607mm | 615mm | 622mm | 639mm | 632mm | 653mm | 647mm | 663mm | 679mm |
Front-Center Horizontal | 599.9mm | 605.9mm | 611.7mm | 618.7mm | 635.7mm | 627.2mm | 650.7mm | 643.2mm | 658.2mm | 675.2mm |
Wheelbase | 1037mm | 1043mm | 1057mm | 1064mm | 1081mm | 1081mm | 1096mm | 1097mm | 1112mm | 1129mm |
Fork Offset/Rake | 50mm | 50mm | 55mm | 55mm | 57mm | 57mm | 55mm | 57mm | 57mm | 57mm |
Fork Length (Axle-To-Crown) | 395mm | 395mm | 409mm | 409mm | 409mm | 424mm | 409mm | 424mm | 424mm | 424mm |
Trail | 66.5mm high | 66.5mm high | 68.9mm high | 68.9mm high | 66.7mm high | 70.2mm high | 68.9mm high | 70.2mm high | 70.2mm high | 70.2mm high |
Mechanical Trail | 62.7mm | 62.7mm | 64.7mm | 64.7mm | 62.7mm | 66.2mm | 64.7mm | 66.2mm | 66.2mm | 66.2mm |
Wheel Flop | 20.9mm | 20.9mm | 22.1mm | 22.1mm | 21.5mm | 22.1mm | 22.1mm | 22.1mm | 22.1mm | 22.1mm |
Standover Height | 688.3mm | 706.1mm | 739.1mm | 751.8mm | 772.2mm | 795mm | 815.3mm | 828mm | 876.3mm | 906.8mm |
Tire to Pedal Spindle | 94.5mm 170 mm cranks | 99.5mm 170 mm cranks | 95mm 170 mm cranks | 102mm 170 mm cranks | 119mm 170 mm cranks | 93mm 170 mm cranks | 133mm 170 mm cranks | 108mm 170 mm cranks | 124mm 170 mm cranks | 140mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 117.5mm 170 mm cranks | 117.5mm 170 mm cranks | 115mm 170 mm cranks | 115mm 170 mm cranks | 115mm 170 mm cranks | 124mm 170 mm cranks | 115mm 170 mm cranks | 124mm 170 mm cranks | 124mm 170 mm cranks | 124mm 170 mm cranks |
Base Build
13.5 | 15.0 | 16.5 | 17.5 | 19.0 (27.5") | 19.0 (29") | 20.5 (27.5") | 20.5 (29") | 23.0 | 25.0 | |
Wheel Size | 26 in 559 mm BSD | 26 in 559 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 700C/29 in 622 mm BSD | 650B/27.5 in 584 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 58mm | 58mm | 58mm | 58mm | 58mm | 58mm | 58mm | 58mm | 58mm | 58mm |
Tire Outer Diameter | 675mm | 675mm | 700mm | 700mm | 700mm | 738mm | 700mm | 738mm | 738mm | 738mm |
Bike Length with Tires | 1712mm | 1718mm | 1757mm | 1764mm | 1781mm | 1819mm | 1796mm | 1835mm | 1850mm | 1867mm |
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
Off-road TouringSource:http://gunnarbikes.com/site/rocktourii/