2007 Soma Fabrications 4one5 Base
- Category
- Hardtail Cross-country MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Steel
- Fork
- Steel
- Suspension
- 80mm fork travel
- Features
- Disc brake, Single-speed capable
Geometry
15 | 17 | 19 | 21 | |
Seat Tube Length, C-T | 381mm | 431.8mm | 482.6mm | 533.4mm |
Top Tube Length, Effective/Horizontal Unknown | 558mm | 586mm | 602mm | 620mm |
Head Tube Angle | 71.5deg | 71.5deg | 71.5deg | 71.5deg |
Seat Tube Angle | 74deg | 73deg | 73deg | 73deg |
Bottom Bracket Drop | 40mm | 35mm | 35mm | 35mm |
Bottom Bracket Height | 290.3mm | 295.3mm | 295.3mm | 295.3mm |
Chainstay Length | 422mm | 422mm | 422mm | 422mm |
Chainstay Length Horizontal | 420.1mm | 420.6mm | 420.6mm | 420.6mm |
Front-Center | 612.2mm | 632.4mm | 648.4mm | 667.4mm |
Front-Center Horizontal | 610.9mm | 631.5mm | 647.5mm | 666.5mm |
Wheelbase | 1031mm | 1052mm | 1068mm | 1087mm |
Fork Length (Axle-To-Crown) | 440mm | 440mm | 440mm | 440mm |
Trail | — — | — — | — — | — — |
Mechanical Trail | — | — | — | — |
Wheel Flop | — | — | — | — |
Standover Height | 683.3mm | 718.8mm | 762mm | 797.6mm |
Tire to Pedal Spindle | 111.9mm 170 mm cranks | 132.1mm 170 mm cranks | 148.1mm 170 mm cranks | 167.1mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 120.3mm 170 mm cranks | 125.3mm 170 mm cranks | 125.3mm 170 mm cranks | 125.3mm 170 mm cranks |
Base Build
15 | 17 | 19 | 21 | |
Wheel Size | 26 in 559 mm BSD | 26 in 559 mm BSD | 26 in 559 mm BSD | 26 in 559 mm BSD |
Tire Width | 2in | 2in | 2in | 2in |
Tire Outer Diameter | 660.6mm | 660.6mm | 660.6mm | 660.6mm |
Bike Length with Tires | 1691.6mm | 1712.6mm | 1728.6mm | 1747.6mm |
Source:https://forums.mtbr.com/attachments/singlespeed/769501d1360266308-fork-soma-4one5-2007-brochure-000008.jpg