At Orange Bikes it's all about the ride, and we've made substantial improvements to our e-bike chassis which deliver the most engaging trail feel, The 170mm travel Surge will take on the biggest terrain, and is not shy when is comes to sending those gaps. Excelling where the uplift doesn't go. Some of the best trails lie beyond where your lift pass takes you – enter the Surge.
The second generation of the Surge E.P.O. model incorporates the new Shimano 8035 battery technology which has allowed us to revise of the ergonics of power assist controls - it's one those little things that can feel like a big difference.
Big adventures and an e-bike with big ideas, way above the lift station. Fast and sure footed, the stability in the Surge's geometry will give you confidence on any trail.
The updated Surge is a revelation and we urge you to try one. E-bikes can be a devisive topic, but once you are bitten by the bug they are hard to resist.
Something that was painstakingly pored over was the suspension characteristic of the new Alpine 6, with everything we gained from that bike we wanted it to translate across into the Surge. Revisions have been made to the shock mounts to accommodate the new metric rear shock (230x65) and the increase in travel from 160 to 165mm, we have also focussed on increasing the amount of progression in the system which has seen a substantial increase, reduced the bike's anti-squat value and decreased the amount of pedal kickback in the system.
The new Surge’s redesigned front triangle accomodates the new Shimano 8035 battery system in under an integrated battery cover within the reprofiled downtube. The profifle of the frame is now much more streamlined and the battery is easily removable for charging.
While the rear swingarm has taken cues from our 327 DH bike in its profile, this has been done to help deal with the large amounts of torque being produced by the motor, the additional overall weight of the bike and the fact that this bike acts like your own personal uplift vehicle where descents are the order of the day.
THE DRIVE UNIT
We've chosen to work with Shimano, using the E8000 pedal assist system. The features it offers work extremely well for us.
Due to the size of the drive unit, no change to bike geometry is necessary. The E-bike you see here is the exact same geometry as our Alpine 6 model.
The power is delivered when the rider starts pedalling. We've found with the Shimano E8000 unit the power is smooth and controllable, even in boost mode. This is crucial on the technical terrain we love to ride.
Unlike other drive units on the market, the Shimano E8000 crankset has the same Q-factor as the human powered cranks you are used to, this means no awkward changes to your pedalling position. This drive unit also has a zero-drag feature, so as you surge past the assisted power, often into descents, all of your pedal input goes into the drive, rather than dragging the motor's "gearbox". This gives a really responsive feel, when you're hitting those high-velocity descents. You soon forget you're riding an E-bike until the assist kicks in again to help power you up the next climb.
WHY THE SURGE?
ELECTRIC POWERED ORANGE
F: 170MM | R: 165MM | W: 27.5
- Frame designed and built in Britain
- 5 year frame warranty with Limited Lifetime Crash Replacement
- New slimmer downtube with Shimano 8035 battery
- New Quick release battery
- New 'On' switch on top tube
- Boost 148mm rear hub spacing
- Alpine-trail honed geometry
- Reduced offset fork
- Long top tube short stem for high-speed stability
- Shimano E8000 250W drive unit with 70Nm torque
- 504Wh Lithium Ion battery for up to 100km assist
- Same 177mm Q-Factor as a standard XT crankset
- Choose from 4 custom colours
Specs & Options
Sizes - M,L,XL
Frame & Fork
6061-T6 Monocoque UK Formed Custom Aluminium Tubing. Wheel Size: 27.5. Rear wheel travel: 165.
Forks - Fox Factory 36 Float 170mm 27.5 (black)
Swingarms - SRAM Maxle Ultimate (Boost 148 Hub)
Rear Shocks - Fox Float X2 Factory 230x65
Headsets - Hope Black - 44mm for Tapered Steerer
Chainsets - Shimano E8050 34t Ring
Rear Mech - Shimano XTR 12spd
Chains - Shimano XTR
Shifters - Shimano XTR
Cassettes - Shimano XTR 10-51T
Chain Device - MRP 1x E-bike
Bottom Brackets - Shimano E8000 DU Integrated
Wheel & Tyres
Wheelsets - Stans Flow Mk3 (Silver) + Hope Pro 4 (Black) 27
Tyres - Maxxis Minion DHF 2.5 3c EXO TR / DHR II 2.4 EXO TR 27.5
Rim Decals - Standard Rim Decals
Brakes - Shimano Saint 203/203
Seat Clamps - Hope Bolted Black
Stems - Burgtec MK2 Enduro Black 35mm
Saddles - SDG Radar Cromo Rail Black/Black
Handlebars - Renthal Fat Bar 800mm M35
Grips - Strange 130 Single Lock-On Black
Seatposts - Fox Factory Transfer 150mm Drop
Drive Displays - Shimano E8000 Cycle Computer
Batteries - Shimano E8035 504wh Integrated battery
Drive Units - Shimano E8000
Control Switches - Shimano E7000
Here are the technical specifications of the Shimano E8000 drive unit.
PEDAL ASSIST MODES
All three support modes will assist until 16mph.
ECO - Riding support while enabling maximum range
TRAIL - Gradual support for encouraging sportive riding
BOOST - Full support for maximum boost and uncompromised climbing
WALK ASSIST - As additional mode, walk assist can be easily enabled with the assist switch
Short chainstays (shorter chainstay length ensuring better manoeuvrability)
Narrow Q-factor of 177mm (compact and lightweight design for better handling with same Q-factor as current Shimano XT)
Maximum power: 500 W
Nominal power: 250 W
Maximum torque: 70 Nm
WEIGHT OF DRIVE UNIT - Under 3 kg
Integrated version (504Wh)
Charging: 80% after 2,5 hrs / 5 hrs from 0 to 100%
Battery life: 1,000 cycles