Bulls Copperhead EVO AM 4
COPPERHEAD EVO AM 4 750
Designed for the pros, but available to everyone. Featuring a 12-speed XTR drivetrain, mullet wheel setup, four-piston brakes, a coated dropper post, and other premium components, the AM4 stays ahead of the competition.
"THE COPPERHEAD EVO AM 4 750 IS OUR TOP SHELF ALL MOUNTAIN EMTB"
Battery: BOSCH PowerTube 750 Wh Smart System
Charger: 4A
Charging time: appx. 6,0 hrs.
Display: LED Remote
Frame: aluminum 6061, internal cable routing
Fork: SR Suntour Durolux 36 RC2 Boost 29, 150 mm
RearShock: SR Suntour RS19 TRIAir 3CR, 150 mm
Derailleur: Shimano XTR RD-M9100-SGS, 12-SPD
Gears: 12-speed
Crankset: E-Thirteen CR4USM-100, 165 mm, 34T
Brakes: Shimano BR6120 4-piston/ BR-M6100 2-piston hydraulic disc 203/203 mm
Handlebar: BULLS MTB Alloy, Dia 31.8 mm, 760 mm, 25 mm raise, 9° back swept
Stem: MTBi, CCS Slot Mount ready
Seatpost: Limotec A1-Z dropper post, 30.9 mm
Seat: Selle Royal Vivo Ergo
Hubs: Shimano HB-MT400-B/FH-MT510-B
Rims: Ryde Disc 30
Tires: Schwalbe Magic Mary Super Gravity 65-622/29 x 2.60 / Big Betty 65-584/27.5 x 2.60
Pedals: BULLS MTB
Weight: 59.8 lbs.
Geometry
| Frame Size | 41CM | 44CM | 48CM | 54CM | ||
|---|---|---|---|---|---|---|
| Seat Tube Length | A | 410 | 440 | 480 | 540 | |
| Top Tube Length | B | 630 | 630 | 640 | 665 | |
| Chain Stay Length | C | 445 | 445 | 445 | 445 | |
| Bottom Bracket Offset | D | 5mm | 5mm | 5mm | 5mm | |
| Head Tube Length | E | 120 | 120 | 130 | 140 | |
| Head Tube Angle | α | 66° | 66° | 66° | 66° | |
| Seat Tube Angle | β | 75° | 75° | 74° | 74° | |
| Standover Height | 800 | 830 | 860 | 890 | ||
| Wheelbase | 1237 | 1237 | 1244 | 1269 | ||
| Reach | 465 | 465 | 467 | 489 | ||
| Stack | 615 | 615 | 624 | 633 | ||
Measured in millimeters
Sizing
5-year Frame Warranty
How do you know what size of bike you should buy?
A good place to start is using the sizing charts included for each bike on the info page. If you're in the middle of the recommended height range for a specific size then usually that's the correct one to go with. If you find yourself overlapping sizes at either the top or bottom of the height recommendation than sizing up or down could be a consideration.
For more relaxed fitting "city-style" bikes sizing is less crucial because often they will have adjustable stems and offer more overlap in sizing. Smaller bikes will be slightly easier to manage when starting and stopping while larger bikes will feel more stable when riding. Most often we recommend sizing down in this category.
Bikes that have a more aggressive riding position i.e. road, gravel and mountain bikes sizing is more important. In these categories we usually look closely at 3 numbers, reach, stack, and top-tube length.