• Shop
  • Show all categories
  • Hide categories
  • Brands
  • Hire & Workshop
  • Advice
Item has been added to the Cart
This bike must be picked up from an approved store. Due to warranty regulations, Mongoose bikes must be assembled by a qualified bike mechanic - this is an international policy for Mongoose bikes.

In Store Availability

Mongoose 2021 Tyax Sport MTB 27.5

Hardtail Mountain Bikes
20% OFF
$1,099.99
$879.99
17
or /week for months

Product Details

This bike must be picked up from an approved store. Due to warranty regulations, Mongoose bikes must be assembled by a qualified bike mechanic - this is an international policy for Mongoose bikes.

Tyax Sport 27.5

Our flagship line of performance hardtail MTBs – the Tyax series – has everything a rider could need to start attacking the tough climbs and winding switchbacks that come with XC riding.


  • The Tyax Sport 27.5 is a high-performance hardtail MTB perfect for newcomers to XC trail riding. Suggested rider height by size: SM: 5’2” – 5’6”, MD: 5’5” – 5’10”, LG: 5'9" – 6'2.
  • Stiff, lightweight Tectonic T2 aluminium frame with tapered headtube, internal cable routing, replaceable hanger, and convertible QR dropouts.
  • 2 x 9 Shimano Acera drivetrain with 3-piece Shimano FC-MT101 aluminium cranks.
  • Xposure 100 mm travel fork with steel steerer and hydraulic lockout.
  • 27.5" x 2.20" Kenda Kadre tires on WTB ST-i29, aluminium double wall, tubeless compatible rims with Tektro HD-M290 hydraulic disc brakes.
Specifications:

FRAME: Tectonic T2, aluminum, 27.5" cross country geometry, internal cable routing, 9 mm x 141 mm QR dropout convertible to 12 mm x 148 mm thru axle, replaceable hanger, tapered headtube
FORK: Xposure, 27.5", steel steerer, hydraulic lockout, 9 mm x 100 mm, QR, 100 mm travel
CRANK: Shimano FC-MT101, aluminum, 36/22T
CHAIN: KMC X9
BOTTOM BRACKET: Shimano BB-UN100, cartridge, 3-piece, threaded 68 mm shell
SHIFTERS: Shimano Acera SL-M2000, 2 x 9
REAR COG: Sunrace, 9-speed, 11-36T
FRONT DERAILLEUR: Shimano FD-M4020, side swing, direct mount
REAR DERAILLEUR: Shimano Altus RD-M2000
RIMS: WTB ST-i29, aluminum double wall, 29 mm ID, 32H, tubeless compatible
FRONT HUB: Xposure, aluminum, ball bearing, 9 mm x 100 mm, 32H, 6-bolt
REAR HUB: Xposure, aluminum, ball bearing, 9 mm x 141 mm QR, 32H, 6-bolt
SPOKES: 14G, stainless steel
TYRES: Kenda, 27.5 in x 2.20 in, wire bead
PEDALS: Nylon
BRAKES: Tektro HD-M290, hydraulic, aluminum, 160 mm rotor
HANDLEBAR: Xposure, double-butted aluminum, 740 mm width, 15 mm rise, 31.8 mm clamp
STEM: Xposure 3D forged aluminum, threadless, 60 mm/70 mm, 6°, 31.8 mm clamp
HEADSET: Threadless, ZS44/ZS56, retainer bearing
SEAT POST: Xposure, aluminum, 350 mm, zero offset, 31.6 mm
SADDLE: Steel railed
GRIPS: Xposure Kraton, semi-ergo lock on

*All specifications listed are subject to change without notice.* Accessories sold separately*



Geometry Table:

    SM MD LG
A Head Tube Angle (Degrees) 69.5 69.5 69.5
B Seat Tube Angle (Degrees) 74 74 74
C Horizontal Top Tube Length (mm) 595 600 630
D Seat Tube Length (mm) 435 450 495
E Standover Height (mm) 773.7 785.5 813.7
F Head Tube Length (mm) 110 115 120
G Chainstay Length (mm) 445 445 445
H Fork Offset (mm) 46 46 46
I Bottom Bracket Drop / Rise (mm) 59.5 59.5 59.5
J Wheelbase (mm) 1117.9 1123.3 1153.7
K Stack (mm) 631.6 636.3 641
L Reach (mm) 413.9 417.5 446.2
  Stem Length (mm) 60 80 80
  Bar Width (mm) 720 720 720
  Seat Post Size (mm) 31.6 31.6 31.6


Authorised Stores

Auckland - Newmarket (Bikes & full bike workshop)
80 Broadway, Newmarket, Auckland 1023

Auckland - Albany
6 Mercari Way, Albany, Auckland 0632

Auckland - Westgate
Shop H07, Fred Taylor Drive, Massey, Auckland 0814

Auckland - Mt Wellington
Apex Megacentre, 315-375 Mt Wellington Highway, Mt Wellington, Auckland 1060

Hamilton - Central
282 Barton Street, Hamilton 3204

Hamilton - The Base
The Base (Next to the Warehouse), Te Rapa Road & Wairere Drive, Te Rapa, Hamilton 3200

Rotorua
1170 Amohau St, Shop 9, Rotorua Central Mall , Rotorua 3010

Taupo
41 Tamamutu Street, Taupo 3330

New Plymouth
1 Struthers Place, Valley Mega Centre, Waiwhakaiho, New Plymouth 4312

Tauranga
Tenancy 10, Tauranga Crossing, 2 Taurikura Drive, Tauranga 3110

Napier (OPEN NOW)
3/87 Ford Road, Onekawa, Napier 4110

Palmerston North
250 Featherston Street, Palmerston North 4410

Wellington - Porirua
10 Semple Street, Porirua Mega Centre, Elsdon, Porirua 5022

Christchurch - Tower Junction
1 Picton Ave & Blenheim Road, Tower Junction, Addington, Christchurch 8011

Christchurch - Northlink
Unit B2 Northlink Centre, 148 Langdons Road, Northcote, Christchurch 8052

Nelson
Cnr Rutherford and Bridge St, Nelson 7010

Dunedin
205 Andersons Bay Rd, South Dunedin , Dunedin 9012

Racers Edge Wanaka
99 Ardmore Street, Wanaka 9305

Queenstown
The Forge Building, Cnr Camp & Shotover Streets, Queenstown 9300

Queenstown - Remarkables Park
Park Town Centre , 12 Hawthorne Drive, Queenstown

Read More

User Reviews

1 Review
Sort by: Newest First
Login & Write a Review
  • Mongoose Tyax
    Love the bike, solid but narrow frame, gears are well spaced out so great for trails but still easy to throw round the forest. Seat is pretty awful on the long trips but will upgrade soon enough. Over all i do reccomend the Tyax. However, picked up xmas eve and the bike was assembled terribly. Chain snapped on first ride, derailleur was way off position, brakes were real noisy, was lucky the chain broke as i was heading into the hills - if i had gone down the hills i would have lost my wheel as hub and wheel were not secured tightly. Found that out when i took it to my local shop and owner did a full service and check up and explained the "lack of" assembly. Cost me $60 but it has never gone better. Love riding it now.
    Blair Martin 9 Mar 2021

Write a review

Join the Torpedo7 Club!

  • Exclusive Experiences

    FREE nationwide outdoor experiences

  • Member only offers

    On gear, services, and adventures

  • Exclusive Delivery

    FREE delivery on orders over $99 (t's & c's apply)

  • Learn more

Welcome back

Sign in to your account

{{errors.first('username')}}
{{errors.first('password')}}

Not part of the club yet? Join for FREE now & enjoy exclusive member benefits or Learn More

Join the Torpedo7 Club!

  • Exclusive Experiences

    FREE nationwide outdoor experiences

  • Member only offers

    On gear, services, and adventures

  • Exclusive Delivery

    FREE delivery on orders over $99 (t's & c's apply)

  • Learn more

Join the Torpedo7 Club

Join today and enjoy great member benefits

{{errors.first('first_name')}}
{{errors.first('last_name')}}
{{errors.first('email')}}
{{errors.first('new_password')}}
{{errors.first('confirm_password')}}

By creating an account, you agree to Torpedo7 Club's Terms & Conditions, and our Privacy Policy.

Already a club member?

Forgot password

We'll email you an address where you can create a new password.

{{errors.first('username')}}

Remember your password?

Not part of the club yet? Join for FREE now & enjoy exclusive member benefits or Learn More about club

Forgot password

We have sent you an email with instructions for resetting your password

Remember your password?