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Kona Unit 27.5+ Mountain Bike 2018 - Hardtail MTB

Free Safety Lights With This Bike: Use Code: BESAFE
Now £790.99
Save £108.01 RRP: £899.00
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1 review
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Product Description

Mountain biking simplified. The Kona Unit 27.5+ hardtail MTB is as straight forward a bike as you can get. The Reynolds 520 Butted Cromoly frame is super robust and smoothens trails with its naturally damping properties. The WTB wheels are super wide, giving the 2.8” tyres a fantastic platform for stable riding, allowing you to have traction and grip in the more demanding terrain. The single-speed drivetrain and rigid fork keep things simple, so you can focus on riding at its best.

Key Features:

  • Reynolds 520 Butted Cromoly frame
  • WTB Scraper i40 Pinned TCS wheels
  • Kona Plus Fork
  • FSA Comet Modular 32T crankset
  • Single Speed 18T drivetrain
  • Kona XC/BC Riser bar, Kona XC/BC stem, Kona Key Grip
  • Tektro HDM285 brakes
  • WTB Ranger TCS 27.5x2.8" tyres
  • Sizes: Small, Medium, Large
  • Colours: Matt Black/Grey/Grey/Yellow Decals
  • The Kona Unit 27.5+ is available with 0% APR finance

You are an artist, and the Unit is your canvas. Single-speed singletrack machine? Yep. Loaded up for a quick overnight or an extended bikepacking trip? Yep. Add whatever drivetrain you like? Yep. Reynolds 520 cromoly gives that unmistakable smooth ride, and the simplicity of a single speed drivetrain keeps your options open. Because you want to do it your way, and we’re cool with that.

All Tredz bikes are:

  • Fully built & ready to ride
  • Fully checked & tested by Cytech qualified mechanics
  • Available with 0% APR finance (up to 48 months) 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)

Specification

Frame: Reynolds 520 Butted Cromoly
Fork: Kona Plus fork
Headset: TH ZST No.10
Stem: Kona XC/BC
Bars: Kona XC/BC Riser
Front Brake: Tektro HDM285 180mm
Rear Brake: Tektro HDM285 160mm
Brake Lever: Tektro HDM285
Speed: 1
Rims: WTB Scraper i40 Pinned TCS
Front Hub: Formula 100x9mm
Rear Hub: Formula 135x10mm
Spokes: Sandvik Stainless 15g fr / 14g rr
Front Tyre: WTB Ranger TCS, 27.5x2.8"
Rear Tyre: WTB Ranger TCS, 27.5x2.8"
Seat Post: Kona Thumb w/Offset, 31.6mm
Chainset: FSA Comet Modular, 32T
Bottom Bracket: FSA 7100
Chain: KMC Z610
Cassette: Joytech, 18T
Pedals: Kona JS2

Occasionally without notice, manufacturers sometimes change product specifications.

Kona Unit 27.5+ Mountain Bike 2018 - Hardtail MTB Reviews

Write your own review
Overall Rating:
4.8
out of 5
4.83
Build Quality
5.00
Performance
4
Value For Money
5.00

Customer Reviews (1)

5
Kona Unit

I'v had my 2018 version four weeks now. Living in the middle of nowhere i wanted a simple bike to fly round all our bridleways and to save my road bike in bad weather. Ride is spot on and have climbed all our steepest hills on it without any problem . Only change made to original spec is the grips otherwise all components do there job a treat.... great bike, low maintenance ... big smile factor

I'v had my 2018 version four weeks now. Living in the middle of nowhere i wanted a simple bike to fly round all our bridleways and to save my road bike in bad weather. Ride is spot on and have climbed all our steepest hills on it without any problem . Only change made to original spec is the grips otherwise all components do there job a treat.... great bike, low maintenance ... big smile factor

Close review
4.8 out of 5
Build Quality: 5/5
Performance: 4.5/5
Value For Money: 5/5

Sizing

Bike Size Calculator

Read our guide to bike sizing

Your mountain bike size is:

Frame (inches): 16/17
Frame (size): Small / Medium

Your road bike size is:

Frame (cm)
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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!

MTB Hardtail Guide

 

Hardtail Mountain Bike Guide

Is a Hardtail 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 mountain bike buying guide to help you decide what type of bike is right for your needs.

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


Usage and suspension travel

Depending on the type of mountain bike riding you’ll be doing, you will want a bike with a longer travel or shorter travel suspension fork as well as components suited to more or less technical terrain.

Usage

Travel

Price Bracket

Pros

Cons

Recreational - riding on gravel tracks and rough roads

80 - 100mm

£200 - £500

Affordable. Low profile tyres roll quickly on smooth surfaces

Not very lightweight. Not capable on technical terrain. Components are less durable.

Cross-country / XC - more adventurous off-road riding and XC racing

100mm

£500 - £9,000

Lightweight, especially high-end carbon models. Fast climbing and accelerating. Efficient on long rides

Less capable on technical terrain than a trail hardtail

Trail - riding technical trails and trail centre loops

120mm – 150mm

£800 - £4,000

More capable on technical terrain, especially fun downhill sections

Heavier than an XC hardtail. Less efficient when climbing

Jump - Dirt jumping and skatepark riding

100mm

£500 - £1,500

Robust frames and components. Ideal for learning airborne skills

Not good for general mountain bike riding

Usage

Travel
& Price

Pros
/ Cons

Recreational - riding on gravel tracks and rough roads

80 - 100mm

£200 - £500

Affordable. Low profile tyres roll quickly on smooth surfaces

Not very lightweight. Not capable on technical terrain. Components are less durable

Cross-country / XC - more adventurous off-road riding and XC racing

100mm

£500 - £9,000

Lightweight, especially high-end carbon models. Fast climbing and accelerating. Efficient on long rides

Less capable on technical terrain than a trail hardtail

Trail - riding technical trails and trail centre loops

120mm – 150mm

£800 - £4,000

More capable on technical terrain, especially fun downhill sections

Heavier than an XC hardtail. Less efficient when climbing

Jump - Dirt jumping and skatepark riding

100mm

£500 - £1,500

Robust frames and components. Ideal for learning airborne skills

Not good for general mountain bike riding


Frame Material

Hardtail MTB frames are mostly made from aluminium alloy. High-end cross-country race bikes will have carbon fibre frames while trail hardtails and jump bikes sometimes feature steel frames.

Aluminium

Aluminium alloy frames are strong and lightweight. More expensive alloy hardtail MTBs tend to have ‘butted’ and/or formed frames which are lighter but just as strong.

Steel

Steel frames are heavier but offer a more comfortable ride, especially on higher end models, thanks to the more compliant nature of steel.

Carbon fibre

Carbon fibre composite frames offer the best of both worlds as they are strong, lightweight and comfortable. They are more expensive however and carbon hardtails start at around £1,300


Groupset and Drivetrain

A bike’s groupset, or drivetrain, 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
  • Shifters
  • Front & rear derailleur
  • Chain
  • Cassette

Mountain bike groupset components are typically supplied by either Shimano or SRAM, with additional manufacturers like Formula, Hope, Magura, Tektro and TRP supplying brake systems.

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

Groupset comparison - Shimano & SRAM

What gearing options are there?

Most hardtails offer a wide range of gears for taking on a variety of terrain. It’s not all about the number of gears though as fewer gears on the front, combined with a wide range rear cassette are much easier to use, but still give you the same wide range of gears. As you go up the price points shifting gets easier with more cogs on the rear cassette and fewer front chainrings.

Entry-level hardtails will have a triple chainset with a seven (3x7) or eight (3x8) speed cassette

Mid-level hardtails tend to have a double chainset with a nine (2x9) or ten (2x10) speed cassette

High-end hardtails get a single front chain ring with a ten (1x10), eleven (1x11) or even twelve (1x12) speed cassette

Which are the best brakes?

There are three types of brakes found on most hardtail mountain bikes:

Rim brake example

Rim brakes are powerful in the dry but are significantly less powerful in the wet.

Mechanical disc brake example

Mechanical disc brakes are powerful in all weather conditions

Hydraulic disc brake example

Hydraulic disc brakes are the most powerful in all weather conditions, and also offer the best braking precision.


Wheel Size

You’ve probably noticed that mountain bikes come in a choice of wheel size, mainly a 27.5 inch wheel (also known as a 650B wheel) or a 29inch wheel (known as a 29er). Another option is 27.5+ or 6Fattie wheels which bridge the gap between 27.5” and 29” wheels. The traditional MTB wheel size is 26”, but are now only found on some small sized MTBs as well as jump bikes. The difference between these wheel sizes can have a dramatic effect on the way a bike feels and handles out on the trail.

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 riding more challenging terrain.

26” wheels are the nimblest and are great for smaller riders as well as jump bikes. While quick to accelerate these wheels are the slowest over rough ground.

Does tyre width make a difference?

Tyre width effects both speed as well as grip. Narrower tyres are faster rolling while wider ones offer more grip as well as more cushioning (float).

Recreational tyre example

1.95” - 2.0” tyres roll quickly and are good for recreational riding and light off-roading.

Trail tyre example

2.2” - 2.6” tyres are a little slower on smooth surfaces but offer much better grip in the corners and are ideal for MTB trail riding

Plus size tyre example

Plus size (6fattie) 2.8” – 3.0” tyres increase the overall diameter of the wheel so still roll quite quickly while offering a lot more grip and float. These are best for rougher terrain


Suspension Fork

The performance of suspension forks varies a lot. Forks on higher end bikes tend to offer more control and are more adjustable. Look for Fox, RockShox or Manitou forks with adjustable rebound and compression damping for the best performance on technical trails. The performance level you require will depend on what type of riding you want to do. 

For recreational riding on roads and gravel tracks, you won’t need a high-performance fork. A lockout feature can be useful for more efficient climbing on roads and smoother tracks. Air sprung forks are lighter than coil sprung forks.

For cross cross-country mountain biking lightweight air sprung forks are best. Adjustable rebound damping is essential for serious off-roading and a remote lockout switch will allow you to quickly firm up the suspension when climbing.

Trail hardtails feature longer travel suspension forks for riding on rougher terrain. Adjustable rebound damping is essential for control on challenging trails. Lockout is less important on these bikes as they are catering for riders who like the downs more than the ups. Adjustable compression damping is useful as it can help you achieve optimum performance levels. Thru-axles and tapered steerer tubes improve steering control.

Suspension fork in action

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

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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

Christmas Delivery

We will try our very best to get your products delivered to you before Christmas, but due to Santa's overspill into our delivery services, we would like to make you aware that while we are making every effort to deliver your order to you in time for Christmas, there may be a potential risk of delay.

The last date to order a bike that is available for Christmas delivery is 5pm on Tuesday 18th December. For all other items the last date to order items that are available for Christmas delivery is 12pm on Wednesday 19th December.

You can easily spot which items are guaranteed for Christmas delivery with the icon. Choose your size and colour to see if the item qualifies for Christmas delivery.

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

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