2022 ROSE Bikes Backroad AL 650B
- Category
- All-road/Gravel
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Aluminum
- Fork
- Carbon/Composite
- Features
- Disc brake
Somewhat upright stack and reachvs category | Somewhat upright stack and reachvs category | Average stack and reachvs category | Somewhat upright stack and reachvs category | Somewhat upright stack and reachvs category | Somewhat upright stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category |
Geometry
46 cm | 49 cm | 51cm | 53cm | 55cm | 57cm | 59cm | 61cm | 64cm | |
Stack | 535mm | 543mm | 547.5mm | 567.5mm | 582.5mm | 600.5mm | 606mm | 621mm | 642.5mm |
Reach | 351.5mm | 355.5mm | 364.5mm | 368.5mm | 373.5mm | 383mm | 390.5mm | 399mm | 409.5mm |
Stack to Reach Ratio | 1.52:1 | 1.53:1 | 1.5:1 | 1.54:1 | 1.56:1 | 1.57:1 | 1.55:1 | 1.56:1 | 1.57:1 |
Seat Tube Length, Unknown | 420mm | 450mm | 475mm | 490mm | 500mm | 510mm | 530mm | 555mm | 605mm |
Top Tube Length, Effective/Horizontal HT Top | 495mm | 506mm | 519mm | 531mm | 543mm | 560mm | 570mm | 586mm | 606mm |
Top Tube Slope | 15.7deg | 13deg | 10.4deg | 10.9deg | 11.3deg | 11.9deg | 10.3deg | 9.1deg | 6.2deg |
Head Tube Angle | 69.5deg | 69.5deg | 70deg | 70.5deg | 70.5deg | 71deg | 71.25deg | 71.5deg | 72deg |
Seat Tube Angle | 75deg | 74.5deg | 74.25deg | 74deg | 73.75deg | 73.5deg | 73.5deg | 73.25deg | 73deg |
Head Tube Length | 110mm | 118mm | 128mm | 142mm | 158mm | 175mm | 190mm | 205mm | 228mm |
Bottom Bracket Drop | 72mm | 72mm | 70mm | 70mm | 70mm | 70mm | 65mm | 65mm | 65mm |
Bottom Bracket Height | 267mm | 267mm | 269mm | 269mm | 269mm | 269mm | 274mm | 274mm | 274mm |
Chainstay Length | 430mm | 430mm | 430mm | 430mm | 430mm | 430mm | 430mm | 430mm | 430mm |
Chainstay Length Horizontal | 423.9mm | 423.9mm | 424.3mm | 424.3mm | 424.3mm | 424.3mm | 425.1mm | 425.1mm | 425.1mm |
Front-Center | 582.5mm | 589mm | 596mm | 601.5mm | 611.5mm | 621.5mm | 630.5mm | 641mm | 653mm |
Front-Center Horizontal | 575.1mm | 581.6mm | 587.2mm | 593.2mm | 604.7mm | 612.7mm | 623.9mm | 634.9mm | 646.9mm |
Wheelbase | 999mm | 1005.5mm | 1011.5mm | 1017.5mm | 1029mm | 1037mm | 1049mm | 1060mm | 1072mm |
Fork Offset/Rake | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm |
Fork Length (On-Axis) | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm |
Trail | 76.6mm high | 76.6mm high | 73.4mm high | 70.2mm high | 70.2mm high | 67mm high | 65.4mm high | 63.9mm mid/​neutral | 60.7mm mid/​neutral |
Mechanical Trail | 71.7mm | 71.7mm | 68.9mm | 66.2mm | 66.2mm | 63.4mm | 62mm | 60.6mm | 57.8mm |
Wheel Flop | 25.1mm | 25.1mm | 23.6mm | 22.1mm | 22.1mm | 20.6mm | 19.9mm | 19.2mm | 17.9mm |
Standover Height | 726mm | 747mm | 767mm | 781mm | 793mm | 806mm | 826mm | 847mm | 884mm |
Tire to Pedal Spindle | 73.5mm 170 mm cranks | 80mm 170 mm cranks | 87mm 170 mm cranks | 92.5mm 170 mm cranks | 102.5mm 170 mm cranks | 110mm 172.5 mm cranks | 116.5mm 175 mm cranks | 127mm 175 mm cranks | 139mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 97mm 170 mm cranks | 97mm 170 mm cranks | 99mm 170 mm cranks | 99mm 170 mm cranks | 99mm 170 mm cranks | 96.5mm 172.5 mm cranks | 99mm 175 mm cranks | 99mm 175 mm cranks | 99mm 175 mm cranks |
650B Build
46 cm | 49 cm | 51cm | 53cm | 55cm | 57cm | 59cm | 61cm | 64cm | |
Wheel Size | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD |
Tire Width | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm |
Tire Width Max | 50mm | 50mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm |
Tire Outer Diameter | 678mm | 678mm | 678mm | 678mm | 678mm | 678mm | 678mm | 678mm | 678mm |
Bike Length with Tires | 1677mm | 1683.5mm | 1689.5mm | 1695.5mm | 1707mm | 1715mm | 1727mm | 1738mm | 1750mm |
Crank Length | 170mm | 170mm | 170mm | 170mm | 170mm | 172.5mm | 175mm | 175mm | 175mm |
Handlebar Width | 400mm | 400mm | 400mm | 400mm | 420mm | 420mm | 440mm | 440mm | 440mm |
Stem Length | 80mm | 80mm | 80mm | 80mm | 90mm | 90mm | 90mm | 100mm | 100mm |
Published Sizing Recommendations
PBH | 63 cm to 69 cm | 70 cm to 74 cm | 75 cm to 77 cm | 78 cm to 80 cm | 81 cm to 83 cm | 84 cm to 87 cm | 88 cm to 90 cm | 91 cm to 95 cm | 96 cm to 100 cm |
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.rosebikes.com/rose-backroad-al-grx-rx810-1x11-2696844?product_shape=fog+grey