specialized giant cube cannondale merida castelli endura altura

GT eForce Amp 2020 - Electric Mountain Bike

£4,199.99
Price Match
or £87.50 / month
Finance Options
Be the first to write a review
Sizing
Select a size
Colour
Pre-Order

Cycle to Work

Product Description

GT's new pedal-assist electric bikes are designed around the idea that going further and discovering new places is what bikes are made to do. Join the E-Bike revolution and discover how many more trails you can grind your way up, how many out-of-the-way hole-in-the-wall places you can visit, and just how awesomely not-exhausting a full day in the saddle can really be.

So Much Fun, it Should Be "E-Legal......

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

Specification

Frame:All New eForce Alloy 29” Frame, 150mm Travel, Shimano STEPS Specific, Internal Battery, LockR Pivots, Tapered Head Tube, Boost 12x148 Thru-Axle, 185x55mm Trunnion Shock Mount
Fork:RockShox 35 Gold RL, 150mm, DebonAir, 15x110, 51mm offset
Rear Shock:Rock Shox Deluxe Select R, 185x55mm Metric Trunnion
Headset:FSA NO.42, Semi Integrated, Sealed Bearing, Tapered
Stem:GT All Terra, 6061 Alloy, 31.8, 7°
Bars:GT Alloy riser bar, 15mm rise, 780mm width
Front Brake:Shimano MT420 4-Piston hydro disc, 203mm RT30 rotors
Rear Brake:Shimano MT420 4-Piston hydro disc, 203mm RT30 rotors
Brake Lever:Shimano MT420 hydro disc
Rear Mech:SRAM NX Eagle
Shifters:SRAM SX Eagle, 12-speed
Speed:12
Rims:WTB STX i29 TCS, 32h, tubeless ready
Front Hub:Shimano MT400, 15x110
Rear Hub:Shimano MT400, 12x148
Spokes:Double butted, 14/15g
Front Tyre:Maxxis Minion DHF, 29 x 2.6", 3C compound, EXO+, tubeless ready
Rear Tyre:Maxxis Minion DHR II, 29 x 2.6", 3C compound, EXO+, tubeless ready
Seat Post:All Terra Dropper Post, internal routing, 31.6, 100mm (S), 125mm (M), 150mm (L-XL)
Saddle:WTB Silverado Sport
Chainset:Shimano FC-E8000, 165mm, X-Sync, 34t
Chain:SRAM SX Eagle, 12-speed
Cassette:SRAM SX Eagle, 11-50, 12-speed
Pedals:Basic Resin Flat
Battery (Wh):Shimano STEPS BT-E8035, 504Wh
Motor:Shimano STEPS DU-E8000 250W
User Interface:Shimano SC-E7000 Cycle Computer

There are currently no customer reviews

Write your own review

Electric Bike Size Guide

Electric Bike Bike Sizing Chart

Frame Size

XXS - 13"

4'8"

 

5'1"

XS - 15"

5'1"

 

5'4"

S - 16"

5'4"

 

5'7"

M - 18"

5'7"

 

5'10"

L - 19"

5'10"

 

6'0"

XL - 20"

6'0"

 

6'3"

XXL - 21"

6'3"

 

6'5"

XXXL - 22"

6'5"

 

6'9"

Electric Bike Sizing Chart

 

Height

Bike size (cm)

bike size (Inch)

4’8” – 5’1”

143 – 155 cm

44 – XXS

13” – XXS

5’1” – 5’4”

155 – 163 cm

48 – XS

15” – XS

5’4” – 5’7”

163 – 170 cm

51 – S

16” – S

5’7” – 5’10”

170 – 178 cm

54 – M

18” – M

5’10” – 6’0”

178 – 183 cm

56 – L

19” – L

6’0” – 6’3”

183 – 191 cm

58 – XL

20” – XL

6’3” – 6’5”

191 – 196 cm

60 – XXL

21” – XXL

6’5” – 6’9”

196 – 205 cm

62 - XXXL

22” – XXXL

 

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.

Read more about buying on finance

Buy now, pay 12 months later.
Interest free credit with no deposit. Pay nothing for 3 or 6 months on orders over £850, or 12 months on orders over £1,500* *Not available through PayPal Credit

Flexible finance options

Choose your deposit.

Choose your term.

£4,199.99 Your basket + this product

Lowest £0 deposit / 0% interest

£87.50 0% APR

per month

for 48 months

Popular 0% finance

£105.00 0% APR

per month

for 36 months

+ deposit of £420.00
Open Finance Calculator
Representative example: If total purchase price is £1,399.00 with a deposit of £139.90 (10%) and your selected term is 36 months Classic Credit (15.9% APR fixed), you would pay £43.55 per month. Total charge for credit will be £308.70 and total amount repayable is £1567.80, subject to terms and status.

Delivery & Guarantee

UK Delivery Information

Please Note: Due to the current circumstances we are experiencing high demand so we may take a little longer than usual to despatch your order. Our Warehouse and Bike Build team are up and running as normal and we are taking active measures to ensure that we are following the government guidance with social distancing and additional health & safety measures have been put in place throughout the business. Please rest assured we will do everything we can to get your order to you as quickly as possible.

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.

International Deliveries - Temporarily Suspended 30/3/20

Covid-19 Update

During the Covid-19 outbreak we will be stopping all international deliveries until further notice. We will continue deliveries to the UK, Isle of Man, Scottish Highlands, Scottish Islands, Channel Islands, Ireland, Northern Ireland, Isle of Wight, Jersey and Guernsey.

If you have any queries, please contact our Customer Service Team. The best way to contact us is to use Live Chat by clicking the widget at the bottom right of your screen.

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
  • 365 day 'no hassle' returns
  • Free UK delivery, on a date that suits you

Show finance options for:

Available finance options:

Months / APR Per month

Buy now, pay later over £850. Find out more Finance provider options available