2025 BTR Fabrications Belter 650b/27.5
- Category
- Hardtail All-mountain/Enduro MTB
- Design
- Flat Bar, Hardtail (Front suspension)
Very upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Very upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Very upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Very upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
S | M | L | XL | |
Stack | 653.9mm | 653.9mm | 662.7mm | 671.5mm |
Reach | 410mm | 430mm | 450mm | 470mm |
Stack to Reach Ratio | 1.59:1 | 1.52:1 | 1.47:1 | 1.43:1 |
Seat Tube Length, Unknown | 360mm | 380mm | 400mm | 420mm |
Top Tube Length, Effective/Horizontal Unknown | 585.2mm | 605.2mm | 627.6mm | 649.9mm |
Top Tube Slope | 31.3deg | 28.5deg | 26.5deg | 24.7deg |
Head Tube Angle | 61.5deg | 61.5deg | 61.5deg | 61.5deg |
Seat Tube Angle | 75deg | 75deg | 75deg | 75deg |
Head Tube Length | 130mm | 130mm | 140mm | 150mm |
Bottom Bracket Drop | 60.5mm | 60.5mm | 60.5mm | 60.5mm |
Bottom Bracket Height | 295mm | 295mm | 295mm | 295mm |
Chainstay Length Horizontal | 412mm | 415mm | 415mm | 420mm |
Front-Center | 782.3mm | 802.3mm | 827mm | 851.7mm |
Front-Center Horizontal | 780mm | 800mm | 824.7mm | 849.5mm |
Wheelbase | 1192mm | 1215mm | 1239.7mm | 1269.5mm |
Fork Offset/Rake | 42mm | 42mm | 42mm | 42mm |
Fork Length (Axle-To-Crown) | 554mm | 554mm | 554mm | 554mm |
Trail | 145.2mm very high | 145.2mm very high | 145.2mm very high | 145.2mm very high |
Mechanical Trail | 127.6mm | 127.6mm | 127.6mm | 127.6mm |
Wheel Flop | 60.9mm | 60.9mm | 60.9mm | 60.9mm |
Tire to Pedal Spindle | 256.8mm 170 mm cranks | 276.8mm 170 mm cranks | 301.5mm 170 mm cranks | 326.2mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 125mm 170 mm cranks | 125mm 170 mm cranks | 125mm 170 mm cranks | 125mm 170 mm cranks |
650b/27.5 Build
S | M | L | XL | |
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 |
Tire Width | 2.5in | 2.5in | 2.5in | 2.5in |
Tire Width Max | 2.5in | 2.5in | 2.5in | 2.5in |
Tire Outer Diameter | 711mm | 711mm | 711mm | 711mm |
Bike Length with Tires | 1903mm | 1926mm | 1950.7mm | 1980.5mm |
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
Hardtail All-mountain/Enduro MTBSource:https://www.btr-fabrications.com/products/belter-frame/#frame-options