Surge XTR

USD RRP from: $8,800.00

2021 Surge XTR
Shown in Smoke White
2021 Surge XTR
Shown in Sandy Playa
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Overview  

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.

Construction

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.

SHIMANO EP8 DRIVE UNIT

We have worked closely with Shimano since the introduction of the very first Electric Powered Orange model. The Shimano drive assist philosophy is very much like our own. Their system does what it needs to do, then stays out of the way when it's done its job, letting you ride the way you want to.

The brand new Shimano EP8 unit is an improvement in every way to the previous model, making what we considered the best even better. The new drive unit is slimmer, sleeker and more compact than its predecessor, but don’t let its size deceive you. The EP8 packs a punch with enough power to get you to the top of any epic climb. The streamlined, integrated design not only looks the part, but it also allows for increased ground clearing for when the trail gets technical.

Everything about the EP8 is designed to allow you to focus on the ride. The new unit operates with little noise, letting you to focus on the natural sound of the trails without distraction. The newly refined Trail Mode utilises all 85Nm of the EP8’s power to effortlessly and intuitively assist you on your ride. Whether tackling loose sand or steep mountain ranges, the drive unit rapidly and seamlessly self-adjusts so that you can be safe in the knowledge that you’ll always have maximum traction and control. The harder you push, the more power will be delivered to assist you, meaning that no trail is off-limits. 

The lightest full-power system, weighing in at just 2.6kg and with a 36% reduction in drag compared to the previous model, the EP8 will not hold you back. An improved clutch mechanism makes for a more responsive ride, with a smoother cut-off when pedalling above 25km/h. All of this puts you in complete control of the bike, with fluid pedalling and no surprises. The EP8 also offers an improved Walk Assist Mode, fully supporting you to push your bike with a one button control, allowing you to hop on and off with ease.

With the E-Tube Project App you can choose from 10 levels of assistance and set the maximum amount of torque best suited to your ride style across three modes, allowing for a fully customised ride before you’ve even put on your helmet. Preferences can be saved to different profiles so that you can quickly and easily switch between them for different terrains, or if swapping from the daily commute to weekend trails.

The EP8 also offers peace of mind. The smart, heat-conducting magnesium materials and a completely redesigned motor housing means that the unit handles rising temperatures on climbs easily, guaranteeing you maximum torque for longer. The new colour display is also fitted with an anti-theft mount and is optimised to be visible in bright sunlight, meaning that you can spend less time with your head down and more time enjoying what the bike has to offer.

Shimano E=8000

TECHNICAL SPECS

Here are the technical specifications of the Shimano EP8 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

COMPACT CONCEPT

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)

PERFORMANCE

Maximum power: 504 W
Nominal power: 250 W
Maximum torque: 85 Nm

WEIGHT OF DRIVE UNIT

2.6 kg

LI-ION BATTERY

Integrated version (504Wh)
Charging: 80% after 2,5 hrs / 5 hrs from 0 to 100%
Battery life: 1,000 cycles

The facts

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
  • Brand New Shimano EP8 Drive Assist 
  • Slim downtube with Shimano 8035 battery
  • Quick release battery
  • '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
  • Choose from 6 custom colours

NEW SHIMANO EP8 FEATURES

  • 85Nm max torque - Max assist ratio: 400%
  • 2.6kg total weight
  • 10% reduced volume (compared with E8000)
  • 36% less drag
  • 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
  • 4 Assist Modes (Walk/Eco/Trail/Boost)
  • Mechanical Walk Assist improved to the level of Intelligent Walk Assist (Di2)

Specs & Options  

SIZES AND COLOURS

Sizes
Colour
Fizzy Orange

Select a frame size to choose colour

Decals
Black/Orange Decals

Frame and Fork

6061-T6 Monocoque UK Formed Custom Aluminium Tubing. Wheel Size: 27.5. Rear wheel travel: 165.

Swingarm
Bolt Type Allen Key Head (Boost 148mm Hub)
Rear Shock
Fox Float X2 Factory 230x65
Headset
Hope Black - 49mm for Tapered Steerer
Fork
Fox Factory 38 Float 170mm 27.5 (black)

Drivetrain

Shifters
Shimano XTR
Cassette
Shimano XTR 10-51T 12spd
Chain Device
MRP 1x E-bike
Bottom Bracket
Shimano EP8 DU Integrated
Crankset
Shimano XT 165 E 34t
Rear Mech
Shimano XTR 12spd
Chain
KMC 12spd

Wheel and Tyres

Wheelset
Stans Flow Mk3 (Silver) + Hope Pro 4 (Black) 27
Tyres
Maxxis Minion DHF 2.5 3c EXO+ / DHR II 2.4 3c EXO+ 27.5

Braking

Brakes
Shimano Saint 203/203

Finishing Kit

Seatpost
Fox Factory Transfer 175mm Drop
Seat Clamp
Hope Bolted Black
Stem
Burgtec MK3 Enduro CNC Black 35mm
Saddle
SDG Strange Bel Air III
Handlebars
Renthal FatBar M35 800mm
Grips
Strange Grappler Lock-On
Pedals

Power Assist

Control Switch
Shimano E8000
Drive Display
Shimano E8000 Cycle Computer
Battery
Shimano E8035 504wh Integrated battery
Drive Unit
Shimano EP8

Accessories

Surge XTR

Find a Dealer

2021 Surge Geometry
SURGE GEOMETRY
Monocoque/6061-T6 Custom Butted Aluminium tubing
Frame Size S M L XL
Seat Tube Length 16" 17" 18" 19"
A. Head Angle 64° 64° 64° 64°
B. Seat Angle (Actual) 72° 72° 72° 72°
B. Seat Angle (Effective) 74° 74° 74° 74°
C. Top Tube 596 615 634 655
D. Top Tube (effective) 620 640 660 680
E. BB Height (from ground) 342 342 342 342
BB height (from axles -12 -12 -12 -12
F. Chainstay 441 441 441 441
G. Head Tube 120 120 130 140
H. Wheel base 1226 1246 1268 1290
J. Reach 442 462 480 497
K. Stack 615 615 624 633
T. Rear Travel 165 165 165 165
Standover 716 724 752 775
Unless otherwise indicated all measurements are in mm. Frame angles are measured static, without rider sag. Bottom bracket height measured from ground with 710 mm Ø tyre.
technical Info
fork travel
OPTIMUM MAXIMUM MINIMUM
170 mm 170 mm 160 mm
Shock Length 230 x 65 mm
Rear Hub 148 x 12 mm
Rear Axle Maxle 142 x 12mm (Length 174mm)
Seatpost Ø 30.9 mm
Seatclamp Ø 34.9 mm
Front Derailleur N/A
BB Shell 73 mm ISCG05
Tapered Headset Upper: ZS49/28.6
Lower: EC49/40

 

Battery Info

For optimum battery charging we have designed the battery to be removed and optimally charged at room temperature between 10° and 20°C. 

Stored batteries in a cool, indoor location with stable temperature between approximately 10° to 20°C

Do leave leave the removed battery exposed to direct sunlight or rain or in an environment likely to drop below 10° C. 

IMPORTANT! Avoid freezing temperatures.

Charge battery to around 70% before storing fro a period of time

Every six months, always charge battery back up to around 70% 

Before using battery again, charge it completely

Ride Guide
Downhill
Freeride
Enduro
All Mountain
Trail
XC Racing
Bike Packing
Gravel
Bike Sizing Guidelines
S
5'0"  —  5'6"
M
5'3"  —  5'8"
L
5'7"  —  6'2"
XL
6'0"  —  6'5"

Please note: This is for guidance only. You may be taller or shorter, it doesn't mean our bikes will not fit you. The best way to determine the correct bike size for you is to try one. We've added some more explanation on sizing theory here: What size frame do I need?

Quick Battery Drop

Feel the Surge

What they say ...  

Fire In The Hole: Orange Surge RS Review by E-Mountainbike

When the trails point downwards, the Orange Surge’s balance and composure provide effortless speed, but it’s a bike best suited to the hands of a strong rider.

E-Mountainbike

View Test...

Find a Demo bike...  

We think the best way to find out what an Orange Bike really has to offer is to ride one. So don't just take our word for it, get out there and give one a go.

Heales Cycles

Highams Park, United Kingdom

Surge RS (2020 Model)

  • Size: M
  • Cosmic White Cosmic White

Call: 020 8527 1592

Dealer Details

Sunset Cycles

Cardiff, United Kingdom

Surge Pro (2020 Model)

  • Size: M
  • Cyan Blue Cyan Blue

Surge Pro (2020 Model)

  • Size: L
  • Cyan Blue Cyan Blue

Call: 02920 371321

Dealer Details

Island Bikes

Isle of Wight, United Kingdom

Surge Pro (2020 Model)

  • Size: L
  • Norlando Grey Norlando Grey

Call: 01983 827100

Dealer Details

Orange Bikes Switzerland

Volleges , Switzerland

Surge Pro (2020 Model)

  • Size: S
  • Cyan Blue Cyan Blue

Surge Pro (2020 Model)

  • Size: M
  • Fizzy Orange Fizzy Orange

Call: 0041797209143

Dealer Details

Botley MTB

Botley MTB, United Kingdom

Surge Pro (2020 Model)

  • Size: M
  • Norlando Grey Norlando Grey

Surge Factory (2020 Model)

  • Size: L
  • Cyan Blue Cyan Blue

Call: 02381 788468

Dealer Details

Bike Treks

Grizedale, United Kingdom

Surge Pro (2021 Model)

  • Size: L
  • Fizzy Orange Fizzy Orange

Surge Pro (2021 Model)

  • Size: L
  • Fizzy Orange Fizzy Orange

Surge Pro (2021 Model)

  • Size: L
  • Norlando Grey Norlando Grey

Call: 01229 860335

Dealer Details

Prices and Specifications are liable to change without notice.

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