specialized giant cube cannondale Mavic Castelli endura altura

Kona Unit 27.5+ Mountain Bike 2018 - Hardtail MTB

Trade in your old bike and get up to £390 towards a new one.

Re-Cycle Bikes to Africa

Out with the old and in with the new - Help others in Africa by donating your old bike to one of the hundreds of drop-off points around the UK. It's quick and easy and you'll get up to £390 off a shiny new bike.

Buy a new bike today and save up to £390 - Hundreds of drop-off points around the UK Buy a new bike today and save up to £390 - Hundreds of drop-off points around the UK
Save £65 off this bike today. Use code: SAVE65
Now £790.99
Save up to £108.01 RRP: £899.00
Price Match Promise
or £21.98 / month
Finance Options
1 review
Add to Basket

Free insurance Includes 8 weeks Free Bike Insurance. Find out more.

  • Product Information
  • Reviews (1)
  • Sizing
  • MTB Hardtail Guide
  • 0% APR Finance
  • Delivery & Guarantee
  • What's In The Box
  • 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)


    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.

Show finance options for:

Available finance options:

Months / APR Per month

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