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Copperhead 3

Perfect balance between handling, endurance, and speed

It was only time before we took out our most popular bike with the “next big thing”. That’s right! We have the BULLS Copperhead 3 which comes standard with the 27.5 (650b) wheels! The Bulls Copperhead 3 stands out for the high-quality appearance. Once we got the frame geometry just how we desired we made it out of the same lightweight 7005 triple butted aluminum we use on the Copperhead Plus. By triple butting the tubes we make the frame strong and stiff where it is needed most and shave the thickness of the walls down to decrease the weight making this bike one of the lightest in its price class. The Copperhead 3 was designed with all the latest and greatest technologies. A pressfit bottom bracket shell was used to improve drivetrain stiffness. We also utilized the tapered steerer tube to ensure the best riding stability and steering response. The RockShox Reba fork has a remote lockout attached to it making it really easy to go from fully open to enjoy bumpy terrain to fully locked making it so you have an easier time climbing. The smaller wheels set the ride for a slightly more nimble feel. If you like really technical winding climbs and descends then this is the ideal bike for you. Even though the Copperhead 3 is operating on a different wheel size, the apple doesn’t fall far from the tree. Our development team made sure that the BULLS Copperhead 3 still had its marathon genes making it comfortable for all day riding. The Copperhead 3 is an ideal bike for any experienced cyclist or anyone trying to get into the sport.


Category Mountainbike
Uses Cross Country, Competition, Allround
Frame 7005 superlite aluminum, triple butted
Front Suspension Rockshox Reba RL, 100mm, remote lockout
Rear Derailleur Shimano XT RD-M786 GS Shadow Plus, 10-speed
Front Derailleur Shimano XT FD-M780A
Shifters Shimano Deore XT SL-M780-I
Crankset Shimano Deore FC-M622 40/30/22T
Chain Shimano CN-HG54-10
Bottom Bracket Shimano SM-BB71-41A, MTB, Press-fit
Cassette Shimano SLX CS-HG81-10, 10-speed, 11-36T
Brakes Shimano SLX SM-RT68 Ice-Tech, 2 hydraulic disc, 180/180 mm
Handlebar UNO (grade 3.0), 5 degree bend
Stem UNO (grade 3.0), 110mm, 7-degree bend
Seat Post UNO (grade 3.0)
Saddle Fizik Nisene / Kalloy UNO (grade 3.0)
Hubs Shimano XT HB-M785QR, 32H
Rims WTB XC 25D 27.5
Wheel size 27.5"
Tires Schwalbe Rocket Ron 27.5 x 2.25
Pedals Wellgo
Weight24.04 Lbs

Specifications subject to change without notice.
10-Speed Drive Train
It is an upgrade from it 9-speed predecessor. It basically allows for a finer selection of gears, thus improving efficiency and power
The travel of the front suspension is 100 mm, which allows for a smooth “swallow” of small and large impacts and beats resulting in a better adhesion to the ground
Press Fit
Press Fit bearings are pressed directly into the frame, rather than screwed. The press-fit inner bearing guarantees higher bicycle stiffness, thus increasing the lifespan of the bearings and overall lower weight
Shimano Shadow Plus
Shimano's Shadow Plus clutch mechanism prevents the lower arm of the derailleur from pivoting forward, meaning that the chain is kept under considerably more tension. The claimed benefits are many: Less chain slap, fewer dropped chains, more stable and accurate shifting over rough terrain and ultimately a much better and quieter ride
Tailored Chainstays
Higher frames require longer chainstays. The result is a much improved climbing capacity, which is relevant in large frames. After all, the centre of gravity clearly shifts backwards with a taller rider, specifically during the climb. Taller riders also need more space since they usually have longer feet, and for the longer cranks to avoid touching the chainstays with their heels
Tapered Steerer
This is semi-integrated headset with an inner diameter of 1 1/8 inch at the top and 1 1/2 inch at the bottom. This ensures best riding stability and excellent control head stiffness. The biggest shaft results in stiffer fork and frame as riding forces are spread more evenly thanks to a thicker head tube
Triple Butted
To save even more on frame weight, the double butting process is refined by stepping down the material at the ends of the tube. This means the butting starts out in the standard, double-butted manner but then is thinned before stepping down again to the normal tube wall thickness. In a cutaway, the inside of the tube looks like three terraced rice paddies on a hillside

Write a review

by Bulls Bikes USA Date Added: Friday 15 May, 2015
Stefan Loibl via “Even with attachments, stiffness and paint quality, the agile entry-Racer makes no weaknesses.”..

Rating: [5 of 5 Stars]
by Bulls Bikes USA Date Added: Friday 15 May, 2015
By Bass Brewers via “There is certainly talk of German thoroughness here with a good frame and good components. Both contribute to a comfortable ride through the woods and make the Bulls Copperhead 3 the mountain bikes for both beginners and advanced.”..

Rating: [5 of 5 Stars]
by david shaffer Date Added: Tuesday 02 February, 2016
Wow! I was a bit concerned making this purchase online, as you know there are not (m)any English reviews out there - yet! Well any concern quickly subsided - the bike came just as described, and attaching the few items - handle bar, pedals was no big deal. I was riding that day. This bike came with higher end components that matched! I've put 100 miles on it and I'm loving the ride. In the bikes shops the advice was buy as much as you can - meaning upgrade the components or suspension, this purchase did that for me. There were no equally priced comps. for the configuration of the Copperhead 3. I'm happy and that's good!..

Rating: [5 of 5 Stars]



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