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Giant Fathom E+ 2 Pro 27.5"+ 2019 - Electric Mountain Bike

Now £2,299.00
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Product Description

Conquer hills and ride challenging MTB terrain in a whole new way. The Giant Fathom E+ 2 Pro is a powerful hardtail electric mountain bike that boosts you natural pedalling power, so you can ride further. With its SyncDrive Pro motor combined with a RockShox Recon suspension fork and Shimano groupset, the Fathom E+ is ready to ride rough roads paths and singletrack with more power and control.

Key Features:

  • ALUXX aluminium frame with neatly integrated battery pack
  • RockShox Recon fork for 120mm of smooth bump soaking suspension travel
  • Shimano XT/Deore 1x10 speed drivetrain
  • Shimano hydraulic disc brakes for all-weather stopping power
  • 5” wheels with wide 2.6” Maxxis tubeless tyres
  • Sizes: Small, Medium, Large, X Large
  • Colour: Blue
  • The Giant Fathom E+ Pro 2 27.5” is available with 0% APR finance

Drive Information:

Motor: Giant SyncDrive Pro, 80Nm powered by YAMAHA, 350% tuneable support

Battery: Giant EnergyPak 500, 36V 11.3Ah Lithium-Ion Panasonic

User interface/remote: Giant RideControl ONE, remote button

Connectivity: Giant E-Bike smart phone app

Integrated design: 500Wh EnergyPak is integrated into the down tube and RideControl ONE handlebar control buttons connect with an E-bike-specific App for health, fitness and navigation functions.

Tuneable support: SyncDrive Pro motor technology gives you 360 percent tuneable power to adjust your E-bike to the way you prefer.

Responsive hardtail handling: Frame is designed for and fitted with a 120mm suspension fork for smooth off-road control.

SyncDrive Pro: SyncDrive Pro is tuned to deliver a powerful, performance-oriented riding style. The lightweight and compact motor is updated for 2019 with the possibility to tune it just the way the rider wants. With a predictable output that reacts to human input, the motor produces linear support to give you more control while riding.

The 80Nm power output offers superior torque and support ratios up to 360 percent. This means that, in the Power mode, 100 percent of human torque input offers 360 percent pedal-assist. This offers more freedom in how the E-bike rides and handles.

Made for performance minded riders, this motor offers 80Nm of powerful support with up to 120 max rpm in the three upper support modes (Active, Sport, Power). The rider experiences no power loss while reaching higher levels of cadence, which makes steep climbs more accessible and comfortable. At the two entry support modes, the rider is rewarded with 110 max rpm and 80Nm of motor torque.

SyncDrive Pro is tuned to give quick and direct response to pedalling, delivering 100% of motor torque in less than 190 milliseconds. Both the ISIS bottom bracket interface and clutch have been updated to provide a quicker, more direct response. Backlash of the ratchet mechanism is reduced by one third and a hollow axle shaft creates a quicker, more direct response. With the narrowest Q-factor of 168mm, SyncDrive Pro makes performance riding even more natural.

BENEFITS

SUPERIOR POWER OUTPUT: Giant’s most powerful motor technology with a massive 80Nm of torque for steep climbs and a 360 percent support ratio.

TUNEABLE PERFORMANCE: The rider can adjust the support ratios for a more dynamic ride experience that matches every rider’s individual needs.

LIGHTWEIGHT & COMPACT: A lighter, more compact motor package with a narrow Q-factor delivers the ultimate cycling experience.

RideControl ONE: Takes your E-bike riding experience to new levels with integrated button controls and a clean handlebar free of any display. The E-bikes equipped with RideControl ONE can connect with the Giant E-bike App* to function as your E-bike display.

Small, integrated buttons let you shift through support modes with ease. The buttons are designed to use in all conditions. They are more robust and designed with a pattern for added grip. The controls are thoughtfully designed with LED lighting that shows your battery level and support mode while you are riding. The RideControl ONE has a minimalist design, displaying the essential information needed to help riders perform their best.

SMART INTEGRATION: Smart, minimalist technology and design featuring integrated control buttons.

EASY HANDLING: With only a few button controls and indicators, it offers simple control of your E-bike

PedalPlus 4: Giant’s PedalPlus 4-sensor technology precisely measures the amount of force a rider is applying to the pedals so that the motor delivers a seamless power boost. The system uses speed and torque sensors along with motor and pedal rotation sensors to produce even power across the entire gear range. The result is predictable power that feels totally natural in any gear and makes riding the bike feel smooth and powerful on all types of terrain.

TORQUE SENSOR TECHNOLOGY: The torque sensor reacts to pedal pressure. The more pressure you apply to the pedals, the more support you get from the motor. It precisely measures this force so that the motor can deliver a seamless power boost.

SPEED SENSOR TECHNOLOGY: The speed sensor works independently from the pressure you are putting on the pedals. It precisely measures the speed the rider is travelling.

MOTOR AND PEDAL ROTATION SENSORS: Allows the motor to run as smoothly and seamlessly as possible

NATURAL FEELING: The torque sensor measures the amount of power the rider is applying to the pedals so that the motor can replicate the natural riding style, adding assistance when needed.

EFFICIENCY: The PedalPlus 4-sensor technology maximises energy efficiency for both the rider and the battery system.

Instant Support: The combination of the sensor technology and the instantaneous response of the SyncDrive motor creates a smooth and powerful riding experience.

Downtube EnergyPak: Future-proof with the new down tube EnergyPak. This updated EnergyPak is mounted in the down tube of our E-bikes. The biggest difference between the side release and top pull EnergyPak is a more minimalist down tube design. This makes it look more integrated and streamlined with the rest of the E-bike frame.

With an aluminium casing, a moulded bottom protector and a double lock feature, this Down tube EnergyPak can handle rough rides. It is able to communicate with the charger and has highly innovative cells that are individually controlled by the smart charger. This gives the Down tube EnergyPak a longer lifetime. 

Heat build-up is managed internally by having double the space between cells giving more temperature control. This makes it safer to handle.

This EnergyPak is also easy to access. With one turn of a key, it releases from the down tube and is ready to charge. The EnergyPak is equipped with highly innovative cells that charge to more than 60% within 90 minutes with 6A charger.

BENEFITS

INTEGRATED DESIGN: The Down tube EnergyPak offers a well-established, integrated design with more minimalist down tube profile.

EASY TO OPERATE: Easy and safe to handle, the Down tube EnergyPak has two locks so it can be easily removed without any hassle.

SMART CHARGING: Offers smart charging with 6 Ampere charging possibilities that can reach over 60% of capacity in only 90 minutes.

All Tredz bikes are:

  • Fully built & ready to ride
  • Fully checked & tested by Cytech qualified mechanics
  • Available with 0% APR finance on baskets over £99
  • UK price match
  • 365 day no hassle returns
  • Free delivery in the UK Mainland on a date that suits you

In the box with every Tredz bike is:

  • Free Tredz 9 key trail tool
  • Free Tredz pedal spanner
  • Free basic pedals
  • Tredz drawstring kit bag
  • 16 point quality control check sheet
  • Basic bike setup instructions
  • Free Cycle Plan insurance voucher (8 weeks)

Occasionally, without notice, manufacturers change product design and/or specifications.

Specification

Frame:ALUXX SL aluminum, Overdrive 1½ - 1⅛" head tube, 148x12mm Thru-Axle, integrated KS18 kickstand mount
Fork:Rock Shox Recon RL 120mm travel, Tapered 1½ - 1⅛" steerer,110x15QR, lockout
Stem:Giant Connect
Bars:Giant Connect TR, 780mm
Front Brake:Shimano BR-MT500, hydraulic disc, 180mm
Rear Brake:Shimano BR-MT500, hydraulic disc, 200mm
Brake Lever:Shimano BL-MT500, i-spec II
Rear Mech:Shimano Deore XT, Shadow+
Shifters:Shimano Deore 1x10
Speed:10
Rims:Giant AM 27.5+, Tubeless ready, 35mm inner width, e-bike optimized
Front Hub:Giant eTracker Boost, Sealed cartridge bearing, 6-bolt, [F] 110x15 [R] 148x12mm Thru-axle, e-bike optimized
Rear Hub:Giant eTracker Boost, Sealed cartridge bearing, 6-bolt, [F] 110x15 [R] 148x12mm Thru-axle, e-bike optimized
Spokes:Sapim E-Lite [r] Race [f], e-bike optimized
Front Tyre:Maxxis Forekaster 27.5x2.6, foldable, 60 TPI, EXO, Tubeless Ready
Rear Tyre:Maxxis Forekaster 27.5x2.6, foldable, 60 TPI, EXO, Tubeless Ready
Seat Post:Giant 30.9mm, 2-bolt Micro Adjustable, Forged Aluminium
Saddle:Giant Contact, Neutral
Chainset:Praxis Wavetm 36T Cold Forged 4130 premium steel Praxis e-Cadet+ custom forged crankarm set
Chain:KMC e.10 Turbo, e-bike optimized
Cassette:Shimano HG50-10, 11-36T
Pedals:Not Included
Battery (Wh):500 Wh
Motor:Giant
User Interface:Giant RideControl ONE

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Fathom E+ 27.5" Sizing

Fathom E+ 27.5" Sizing

See the table below to find the right size Giant Fathom E+ 27.5". 

Inside Leg (Inches) Vs Rider Height (Feet & Inches)

26”

27”

28”

29”

30”

31”

32”

33”

34”

35”

36”

37”

5’ 3”

 

 

S

S

S

 

 

 

 

 

 

 

5’ 4”

S

S

S

S

S

 

 

 

 

 

 

 

5’ 5”

S

S

S

S

S

 

 

 

 

 

 

 

5’ 6”

 

S

S

S

S

S

 

 

 

 

 

 

5’ 7”

 

 

S

S

S

M

M

 

 

 

 

 

5’ 8”

 

 

 

M

M

M

M

M

 

 

 

 

5’ 9”

 

 

 

M

M

M

M

M

 

 

 

 

5’ 10”

 

 

 

 

M

M

M

M

M

 

 

 

5’ 11”

 

 

 

 

M

M

M

M

M

 

 

 

6’ 0”

 

 

 

 

 

M

M

L

L

L

 

 

6’ 1”

 

 

 

 

 

L

L

L

L

L

 

 

6’ 2”

 

 

 

 

 

 

L

L

L

L

L

 

6’ 3”

 

 

 

 

 

 

L

L

L

L

L

 

6’ 4”

 

 

 

 

 

 

 

L

L

XL

XL

XL

 Read our bike size guide for more information on sizing.

 

Fathom E+ 27.5" Geometry

 

S

M

L

XL

Seat Tube Length

405

455

505

535

Seat Tube Angle

73

73

73

73

Top Tube Length

575

595

615

625

Head Tube Length

110

115

140

150

Head Tube Angle

68

68

68

68

Fork Rake

36

46

46

46

Trail

101

101

101

101

Wheelbase

1135

1156

1178

1199

Chain Stay Length

470

470

470

470

Bottom Bracket Drop

45

45

45

45

Stack

617

622

645

654

Reach

386

495

417

435

Stand Over Height

753

760

787

791

Handlebar Width

780

780

780

780

Stem Length

50

60

60

70

Crank Length

165

170

170

170

Wheel Size

27.5+

27.5+

27.5+

27.5+

Read our Mountain Bike Geometry Explained guide for more information on MTB geometry. 

Please note, all size information is provided as a guide - if you're unsure or need any further assistance you can call us on 01792 799508 ... we're happy to help!

Electric MTB Guide

 

Electric Mountain Bike Guide

Is an Electric Mountain Bike Right for Me?

If you’re new to the cycling world, we highly recommend taking a look at our bike buying guide overview or our electric bike buying guide to help you decide what type of e bike is right for you.

When you’re choosing an electric mountain bike, there are a few things to look out for, which can help you to work out the quality and performance to expect from a particular model.


Usage & Suspension travel

Just like a regular full suspension or hardtail mountain bike, the amount of available suspension travel on an eMTB varies with the intended use. Depending on the type of mountain bike riding you’ll be doing, you’ll want a bike with longer or shorter suspension travel as well as components suited to more or less technical terrain.

Type

Travel

Usage

Pros

Cons

Hardtail

Up to 130mm travel fork

Cross-country and trail

Nimble handling more affordable than a full suspension eMTB

Hardtails are less capable on rough and demanding trails with large jumps and drops

Full Suspension – short travel

120mm – 150mm

Trail and cross-country

Well balanced for both climbing and descending

Less capable on challenging descents than a longer travel bike

Full Suspension – long travel

150mm +

Enduro, trail and downhill

More capable on rough, steep and technical descents, including DH and enduro tracks

Heavier and less manoeuvrable on tight trails. More cumbersome on the climbs

Type / Travel / Usage

Pros

Cons

Hardtail

Up to 130mm travel fork

Cross-country and trail

Nimble handling more affordable than a full suspension eMTB

Hardtails are less capable on rough and demanding trails with large jumps and drops

Full Suspension – short travel

120mm – 150mm

Trail and cross-country

Well balanced for both climbing and descending

Less capable on challenging descents than a longer travel bike

Full Suspension – long travel

150mm +

Enduro, trail and downhill

More capable on rough, steep and technical descents, including DH and enduro tracks

Heavier and less manoeuvrable on tight trails. More cumbersome on the climbs


Frame Material

Most electric mountain bike frames are made from aluminium alloy, although some are made from carbon fibre composite.

Aluminium

Aluminium alloy is lightweight, stiff, strong. Manufacturers often develop their own aluminium alloys, such as ALUXX by Giant. Aluminium is found on a wide range of e bikes, from entry-level and enthusiast bikes, right the way up to top-spec eMTBs.

Carbon Fibre

Carbon fibre is lighter, stiffer, stronger, and more expensive than aluminium. The main benefit for electric mountain bikes is that carbon frames are stiffer for improved handling.


Drive Tech

Designed to enable you to have more fun on the trails, all of our electric mountain bikes feature powerful crank drive motors with long lasting lithium-ion battery packs and easily accessible control units.

Motor

Crank drive motors boost your natural pedalling power. The cranks are connected to the motor and the motor is connected to the chainring which then powers the bike forward. The bike senses the pressure that you put though the pedals and then adds an appropriate level of power to make pedalling easier. This additional power is delivered seamlessly, and you will feel like your legs have just become much more powerful. Motors all have a nominal 250w output and are usually provided by big component manufacturers like Bosch, Shimano, Yamaha and Brose.

Illustration showing a electric motor on a electric bike

Battery

Easily charged either on or off the bike the lithium-ion battery pack will offer you long lasting assistance. Where and how you ride will make a big difference to the range that you can expect to achieve from a single charge, but most e bikers find the capacity of these batteries to be more than sufficient. Some brands offer innovative ways to integrate the battery within the frame. 400Wh or 500Wh batteries are most common.

Illustration showing a battery mounted to a ebike frame

Control Units

All electric mountain bikes allow you to adjust the amount of power the motor delivers. This helps to help you manage the battery capacity. Control units have some kind of display that, at the very least, shows remaining battery capacity and the current power mode. Some control units feature a handlebar mounted display unit that displays additional information like estimated range and satellite navigation prompts. Many eMTBs offer Bluetooth and ANT+ connectivity with smartphone apps for fine tuning the motor output and accessing more advanced features.

Illustration showing a heads up display mounted to the handlebars

Groupset

An electric mountain bike’s groupset, is where the biggest difference in component quality is seen. A complete groupset comprises of the following parts:

  • Chainset (aka Crankset)
  • Bottom bracket
  • Brakes
  • Brake levers
  • Shifter
  • Derailleur
  • Chain
  • Cassette

Electric mountain bike groupset components are typically supplied by either Shimano or SRAM, sometimes with additional manufacturers like Magura, Tektro and TRP supplying brake systems. You will mostly find one-by drivetrains with a single front chainring and a wide range rear cassette.

Shimano and SRAM both produce a range of groupsets to suit different budgets. The hierarchy table here compares the different Shimano and SRAM groupsets to determine which bikes offer the best performance.

Groupset comparison - Shimano & SRAM

Wheel Size

Just like regular mountain bikes, e MTBs are available with different wheel sizes. 27.5” (650b) and 29” wheels are both available but the most common e MTB size is 27.5”+ (6fattie) that bridges the gap between the two.

MTB wheel sizes

27.5” (650b) wheels strike the ideal balance between fast rolling and nimble handling. They are lighter than 29” wheels so are faster to accelerate. On the other hand, the smaller wheel size rolls less efficiently than the larger size, making the bike more prone to losing speed over rough ground.

29” wheels roll fastest but are less nimble. These wheels are naturally smoother over rough ground but are heavier and slower to accelerate. Larger riders may find a better fit on a 29er, but smaller riders may find 29” wheels a little cumbersome.

27.5+ (6fattie) wheels feature wider 2.8” – 3.0” tyres and offer more cushioning (float) as well as more grip. With the extra size of the high-volume tyres, the overall wheel diameter is similar to a 29er, so these wheels carry speed very well on rough ground. Plus sized wheels are ideal for electric mountain bikes as they deal best with the extra weight of the motor and battery, and are great for riding more challenging terrain.


Suspension components

Electric mountain bike suspension components (i.e. the fork or rear shock absorber) are also a way to identify the quality of a bike. While Fox and RockShox are the most common manufacturers, there are a number of brands producing suspension components for mountain bikes.

Entry Level eMTBs

Entry level electric mountain bikes (up to approximately £2,500) may come supplied with a fork and rear shock supplied by SR Suntour, X-Fusion or RockShox. These components will allow a limited amount of adjustment, including:

  • Coil spring preload / air spring pressure adjustment.
  • Lockout switch.
  • Rebound damping adjustment on models towards the top of the price range.
Mid-range and enthusiast eMTBs

Mid-range and enthusiast eMTBs (up to approximately £5,000) use components from brands including Fox, RockShox and Manitou. At this level, suspension components have features like:

  • Preload adjustment / air spring pressure adjustment
  • Rebound damping adjustment
  • Lockout switch
  • Multi-position ‘mode’ switch
  • Compression damping adjustment
Top of the range eMTBs

Top of the range electric bikes (over £5,000) also use components from Fox, RockShox and Manitou, with a few select models using parts from high-end suspension brands like Ohlins. At this price, suspension components have features including:

  • Coil spring preload adjustment / air spring pressure adjustment
  • High and low speed rebound damping adjustment
  • High and low speed compression damping adjustment
  • Lockout switch
  • Multi-position ‘mode’ switch
  • Advanced low-friction coatings (e.g. Fox’s golden-coloured Kashima coating)

Finance

How do I apply for finance?

Spend £99 or more at Tredz and you can spread the cost. Pay monthly over 6-48 months, interest free (dependent on repayment terms and amount).

1Fill your basket with everything you want from Tredz and go to the checkout.

2During checkout, select the finance option you want as your method of payment.

3You will be sent to our finance provider's secure server to complete your application.

4Finance providers PayPal & V12 will use the information provided to make a decision and complete checkout if you are approved.

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Delivery & Guarantee

UK Delivery Information

We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE in the UK, regardless of the size and on all orders over £20.

Please note that bulky products and bikes shipped to outlying UK regions are excluded from free shipping.

Please note that Pre-Order dates can sometimes change due to updated stock information.

Click here for more UK and international delivery information.

Returns & Warranty

It's easy to return a product with our 365 day, hassle free returns. 

We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).

Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.

If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.

For more information please visit our Returns & Warranty page.

What's In The Box

What's In The Box

As cyclists ourselves, we know you will be keen to get out on your new bike as soon as possible. That's why we provide you with all the essential kit you need to get your shiny new bike rolling for the first time.

Most bikes don't come with pedals as standard so we include a set of basic pedals, free of charge with every bike we send out. We will also provide you with a pedal spanner to fit them and a 9-key trail tool, along with full instructions for setting your bike up out of the box. Each bike is sent out with a 16 point, quality control check sheet so you can be confident that your bike has been fully checked by our qualified mechanics.

What's in the box
  • Basic setup instructions
  • 16 point quality control checklist
  • Free tredz multitool
  • Free tred pedal spanner
  • Free basic pedals
  • Free drawstring kit bag
  • Free bike insurance voucher

All these items are provided at no extra charge and are packed into a Tredz drawstring bag that doubles up as a handy backpack for carrying your ride essentials.

  • Basic bike setup instructions
  • Free ‘basic’ pedals
  • Free Tredz pedal spanner
  • Free Tredz 9-key trail tool
  • Free Tredz drawstring bag
  • Free 8 weeks insurance voucher
  • 16 point, quality control check sheet

Tredz Service:

Tredz bikes are fully built & set up to ride
Read our bike setup guide.

Free UK delivery, on a date that suits you
We will ring to choose a suitable day. Find out more
  • Tredz bikes are fully checked & tested by Cytech qualified mechanics
  • 0% APR finance available on any basket over £99
  • Price match
  • 365 day 'no hassle' returns
  • Free UK delivery, on a date that suits you

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