| YAMAHA Big Bear 400 IRS | ARCH MOTORCYCLE 1S |
|---|
| engine specs | |
| Type | |
|---|---|
| 4-stroke, Air-/oil-cooled Single, SOHC | S&S Cycle T124 45-degree downdraft fuel-injected V-Twin engine |
| Displacement | |
| 386 cm3 | 2032 cm3 |
| Bore X Stroke | |
| 3.3x2.8 in OR 84 mm | - |
| Compression Ratio | |
| 8.6:1 | - |
| Torque | |
| - | 115.3/- lb-ft/RPM OR 156/- Nm/RPM |
| Fuel System | |
| Mikuni 33mm BSR | EFI |
| transmission specs | |
| Gearbox | |
|---|---|
| 5-speed, reverse | 6-speed |
| Clutch | |
| Automatic clutch | Compact dry clutch |
| Final Drive | |
| On-Command pushbutton 3-way locking differential 2WD, 4WD, locked 4WD shaft drive | Chain |
| chassis specs | |
| Frame | |
|---|---|
| Steel | Tubular steel frame with CNC-machined aluminum subframe single-sided swingarm |
| Front Suspension | |
| Independent double wishbone 5.8-in travel | Fully adjustable ARCH/Öhlins FGRT series fork |
| Rear Suspension | |
| Independent double wishbone 7.6-in travel | Fully adjustable ARCH/Öhlins rear shock with reservoir and hydraulic pre-load adjustment |
| Front Brake | |
| Dual Hydraulic Discs | Dual ISR 6-piston monobloc radial mount calipers with ISR floating dampened discs |
| Rear Brake | |
| Sealed wet brake | Single ISR 4-piston monobloc radial mount caliper with ISR semi-floating disc |
| dimension specs | |
| Overall Length | |
|---|---|
| 79.4 in OR 2017 mm | - |
| Overall Width | |
| 43.9 in OR 1115 mm | - |
| Seat Height | |
| 35.2 in OR 894 mm | 31.5 in OR 800 mm |
| Ground Clearance | |
| 10.5 in OR 267 mm | - |
| Weight | |
| 593 lbs OR 269 kg | 563 lbs OR 255 kg |
| Fuel Capacity | |
| 4 gallons OR 15.1 L | 4.5 gallons OR 17.0 L |
| Wheelbase | |
| 48.4 in OR 1229 mm | 65.4 in OR 1661 mm |
| tyres specs | |
| Front | |
|---|---|
| AT25 x 8-12 ITP Mud Lite | 120/70-17 Michelin Power RS |
| Rear | |
| AT25 x 10-12 ITP Mud Lite | 240/45-17 Michelin Power RS |
