2025 BTR Fabrications Chaser 29" single speed
- Category
- Hardtail Cross-country MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Features
- Single-speed capable
Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
S | M | L | XL | XXL | |
Stack | 612.1mm | 612.1mm | 621.2mm | 627.3mm | 636.5mm |
Reach | 420mm | 440mm | 460mm | 480mm | 500mm |
Stack to Reach Ratio | 1.46:1 | 1.39:1 | 1.35:1 | 1.31:1 | 1.27:1 |
Seat Tube Length, Unknown | 400mm | 420mm | 440mm | 460mm | 480mm |
Top Tube Length, Effective/Horizontal Unknown | 595.5mm | 615.5mm | 638.1mm | 659.9mm | 682.5mm |
Top Tube Slope | 23.2deg | 20.6deg | 18.8deg | 17deg | 15.5deg |
Head Tube Angle | 66deg | 66deg | 66deg | 66deg | 66deg |
Seat Tube Angle | 74deg | 74deg | 74deg | 74deg | 74deg |
Head Tube Length | 100mm | 100mm | 110mm | 120mm | 130mm |
Bottom Bracket Drop | 65.5mm | 65.5mm | 65.5mm | 62.5mm | 62.5mm |
Bottom Bracket Height | 303.9mm | 303.9mm | 303.9mm | 306.9mm | 306.9mm |
Chainstay Length Horizontal | 430mm | 430mm | 430mm | 430mm | 435mm |
Front-Center | 722.2mm | 742.1mm | 766.1mm | 789.8mm | 813.8mm |
Front-Center Horizontal | 719.2mm | 739.2mm | 763.2mm | 787.3mm | 811.4mm |
Wheelbase | 1149.2mm | 1169.2mm | 1193.2mm | 1217.3mm | 1246.4mm |
Fork Offset/Rake | 51mm | 51mm | 51mm | 51mm | 51mm |
Fork Length (Axle-To-Crown) | 507mm | 507mm | 507mm | 507mm | 507mm |
Trail | 108.7mm very high | 108.7mm very high | 108.7mm very high | 108.7mm very high | 108.7mm very high |
Mechanical Trail | 99.3mm | 99.3mm | 99.3mm | 99.3mm | 99.3mm |
Wheel Flop | 40.4mm | 40.4mm | 40.4mm | 40.4mm | 40.4mm |
Tire to Pedal Spindle | 182.7mm 170 mm cranks | 202.7mm 170 mm cranks | 226.6mm 170 mm cranks | 250.4mm 170 mm cranks | 274.4mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 133.9mm 170 mm cranks | 133.9mm 170 mm cranks | 133.9mm 170 mm cranks | 136.9mm 170 mm cranks | 136.9mm 170 mm cranks |
29" single speed Build
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 |
Tire Width | 2.3in | 2.3in | 2.3in | 2.3in | 2.3in |
Tire Outer Diameter | 738.8mm | 738.8mm | 738.8mm | 738.8mm | 738.8mm |
Bike Length with Tires | 1888mm | 1908mm | 1932.1mm | 1956.2mm | 1985.2mm |
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 Cross-country MTBSource:https://www.btr-fabrications.com/products/chaser-ss-frame/#frame-options