Merida eBig Nine 300SE 2021 - Electric Mountain Bike
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- ShowProduct Information The geometry of the Merida eBig Nine 300 SE follows one very simple principle: As sporty as possible... read more
- Show Reviews & Q&As
- Show Big Nine Sizing
- Show Electric MTB Guide
- Show Finance
- Show Delivery & Guarantee
- Show What's In The Box
Product Description
The geometry of the Merida eBig Nine 300 SE follows one very simple principle: As sporty as possible, as comfortable as necessary with a powerful boost to your natural pedalling power. You ride to work in the morning but fancy a little off road detour on the way home? No problem – that is what these bikes are made for!Key Features:
- Aluminium alloy frame with mounts for mudguards
- SR Suntour fork offers 100mm of bump soaking suspension travel
- Shimano 1x9 speed drivetrain for easy gear shifting
- Shimano hydraulic disc brakes for confident stopping power
- Kickstand ready fitted
- Sizes: Medium, Large, X Large
- Colours: Black
Drive Information:
- Motor – Shimano Steps E7000, 60Nm torque
- Battery – Shimano 504Wh
- User Interface – Shimano SC-E5000 display
All Tredz bikes are:
- Fully built & ready to ride
- Fully checked & tested by Cytech qualified mechanics
- Available with 0% APR finance on any basket over £99
- UK price match guarantee
- 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: | Lite - Extensively hydroformed 6066 series aluminium with internal cable routing via Smart entry ports for rattle free running. Complete with mounts for mudguards and kickstand |
| Fork: | Suntour XCM32 DS; Coil; 100mm; Tapered; 47mm fork offset |
| Headset: | Merida 2341 Neck |
| Stem: | Merida Expert CC; aluminium; 31.8mm diameter; 6 degree rise - Length : 80 mm-M, 90 mm-L, 100 mm-XL |
| Bars: | Merida Expert CC; aluminium; 720mm wide; 10mm rise |
| Front Brake: | Shimano BR-MT200; 2 piston hydraulic disc brake (or Tektro HD-M275) with Shimano RT10; 180mm rotor |
| Rear Brake: | Shimano BR-MT200; 2 piston hydraulic disc brake (or Tektro HD-M275) with Shimano RT10; 180mm rotor |
| Brake Lever: | Shimano BR-MT200 (or Tektro HD-M275 if Shimano supply is delayed) |
| Rear Mech: | Shimano Deore RDM592 9 |
| Shifters: | Shimano Alivio M3100 9 |
| Speed: | 9 |
| Rims: | Merida Comp CC; 20mm inner rim width; Material: aluminium |
| Front Hub: | Shimano MT400; 110x15mm; 32 spokes; Centerlock |
| Rear Hub: | Shimano MT400-B; 148x12mm; 36 spokes; Centerlock; including removable lever with 4/6mm Allen key |
| Spokes: | Black stainless |
| Front Tyre: | Maxxis Ikon; 29" x 2.2"; kevlar bead |
| Rear Tyre: | Maxxis Ikon; 29" x 2.2"; kevlar bead |
| Seat Post: | Merida Expert; aluminium; 30.9mm diameter; 15mm lay back |
| Saddle: | Merida Comp CC; V-mount |
| Chainset: | Shimano CRE70-B; 34 teeth chainwheel with Shimano FC-E8000; 165mm length crank |
| Bottom Bracket: | Part of Shimano Steps motor |
| Chain: | Shimano CN-HG53 |
| Cassette: | Shimano HG200; 11-36 teeth; 9 speed |
| Pedals: | VP Components, VPE-537 |
| Battery (Wh): | 504 Wh |
| Motor: | Shimano E7000; 60Nm motor with Shimano E8010; 504Wh battery |
| User Interface: | Shimano SC-E5000 |
Big Nine Sizing
Merida Big Nine 2021 Sizing
|
Size |
Height (Cm) |
Height (feet) |
|
S (14.5”) |
157 - 168 |
5’2” – 5’6” |
|
M (17”) |
168 - 176 |
5’6” – 5’9” |
|
L (18.5”) |
176 - 183 |
5’9” – 6’0” |
|
XL (20”) |
183 - 193 |
6’0” – 6’4” |
|
XXL (22”) |
193 – 200 |
6’4” – 6’7” |
What size frame do I need if I am between sizes? - read here
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. This electric bike buying guide is here 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.
Frame Material
Most electric mountain bike frames are made from aluminium alloy, although some are made from carbon fibre composite.
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 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.
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.
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.
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
 |  | |
|---|---|---|
| Professional |
11
 |
12
 AXS Eagle 12
 AXS Eagle |
|
12
 |
11
 11
 |
|
|
11
 |
||
| Enthusiast |
12
 |
|
|
11
 |
10
 |
|
|
10
 |
11
 |
|
| Entry |
9
 |
12
 Eagle |
|
9
 |
9-10
 |
|
|
9
 |
9-10
 |
|
|
7
 |
7-10
 |
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.
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.
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 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 (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 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
Delivery & Guarantee
UK Delivery Information
International Deliveries – Temporarily Suspended 11/11/20
Note: We are still offering deliveries to the Isle of Man, Scottish Highlands, Scottish Islands, Channel Islands, Isle of Wight, Jersey and Guernsey. We are no longer delivering to Northern Ireland.
Courier Delivery update: Due to the COVID19 situation, we are currently experiencing some delays with deliveries. Our couriers are working around the clock to get your order to you as soon as possible but there is a potential delay of up to 48 hours . Please check your tracking on track your order here.
Please download the TNT Track and Trace App for iOS here and Android here so you can keep an eye on your delivery and any further updates.
Please note on the TNT tracking app it may show your delivery status as ‘Collecting’ (as per image below). This means your delivery has left our warehouse and is currently held at TNT main depot and there could be up to a 48 hour delay.
Please keep checking the TNT tracking for further updates. On behalf of TNT we apologise for any delay and inconvenience this may cause.
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.
- 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 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
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