Vitus Nucleus Mountain Bike 2026

Vitus Nucleus Mountain Bike 2026 - £949.00

The Vitus Nucleus is the mountain bike you never forget. The one that got you hooked. It’s everything a mountain bike should be - comfortable, reliable and predictable. But above all, it’s fun.

The Nucleus is versatile enough to ride anywhere, but you’ll have the best time riding proper trails. It feels like a mountain bike should, inspiring confidence when riding off-road, over rough ground and when tackling trail obstacles. This is a real mountain bike and a proven performer, but don’t just take our word for it. The Nucleus is a multi award-winner that has been voted Hardtail of the Year four times in a row by MBR Magazine.

Riding your first mountain bike requires full trust in the equipment. As the trail twists and turns, rises and falls, you need to feel in complete control. The tried and tested geometry of the Nucleus has reassuring stability and agility that keeps your body relaxed and your smile wide. To match, the bike arrives equipped with high-quality, durable components. Hydraulic disc brakes are responsive no matter the conditions, the fork uses SR Suntour air-sprung suspension and the no-fuss Shimano Cues drivetrain ensures the gear shifting is fast and light. But this bike won’t be left behind as your confidence grows. With the award-winning aluminium frame at its core, you will be able to fully customise and upgrade the setup to best suit your riding style and keep your mountain biking skills rolling forward.

Your first mountain bike should arm you with everything required to enjoy this sport. To set you on your way to unlocking the excitement of riding trails. The Nucleus is not off-the-shelf, it’s tailored specifically for the needs of a new mountain biker.

6061 alloy frame with UDH, thru-axle, boost spacing and dropper post routing

  • Modern, confidence-inspiring trail geometry.
  • Suntour Raidon 120mm air-sprung fork, boost spacing, thru-axle
  • Shimano Cues 1x10 speed drivetrain
  • Tektro HDM-280 hydraulic disc brakes
  • Maxxis Forekaster 2.4 tires


Award Winning Trail Hardtail

Four time MBR Hardtail of the Year

Frame Material

6061-T6 Aluminium Alloy

Suspension Travel

120mm Fork

Wheel Size

S - 27.5", M,L,XL - 29"

Available Size

S, M, L, XL

Colour 

Black

Weight:

Medium: 13.5kg

£949.00

Where can I buy Vitus bikes?

You can buy Vitus bikes directly through our exclusive retailers:

Vitus Nucleus Mountain Bike 2026
Vitus Nucleus Mountain Bike 2026
Vitus Nucleus Mountain Bike 2026
Vitus Nucleus Mountain Bike 2026
Vitus Nucleus Mountain Bike 2026
Vitus Nucleus Mountain Bike 2026
Vitus Nucleus Mountain Bike 2026


Specifications

FRAMENucleus Aluminium 6061-T6

UDH, thru-axle, external cable routing, dropper post routing

REAR HUB Joytech D041-B15

Disc, 6 bolt, 32h

FORKSSuntour Raidon 32

Boost, 120mm, air sprung, short fender

WHEELSETVitus

30mm internal diameter, 32h

SHOCKN/A

N/A

FRONT TYREMaxxis Forekaster

2.4" wire bead 60tpi

CHAINSETProwheel

FD04S, 32t narrow-wide, 170mm

REAR TYREMaxxis Forekaster

2.4" wire bead 60tpi

BOTTOM BRACKETProwheel

FD04s

BRAKESTektro

HDM-280 hydraulic disc, F: 180mm rotor, R: 160mm

FRONT DERAILLEURN/A

N/A

BRAKE ROTORSTektro

F: 180mm rotor, R: 160mm

REAR DERAILLEURShimano Cues 10 Speed

RD-U600, 10-speed, shadow plus

HANDLEBARSVitus

Alloy, 31.8mm, 20mm rise, 6 deg, S: 760mm, M-XL:780mm

SHIFTERSShimano Cues 10 Speed

SL-U600-10R, 10-speed, rapid fire

STEMVitus

Alloy, 31.8mm, 3 deg rise, 45mm

CASSETTEShimano Cues 10 Speed

11-46t

HEADSETNeco ZS44/28.6 upper & ZS56/28.6 lower

1-1/8" Upper To 1.5" Lower Headtube Reduced To Suit 1-1/8" Straight Steerer

CHAINShimano Cues

10 Speed

GRIPSVelo Lock On

Black 132mm grip

FRONT RIMVitus

30mm internal diameter, 32h

SADDLEVitus

Steel Rails

REAR RIMVitus

30mm internal diameter, 32h

SEATPOSTVitus Alloy

Alloy, 31.6mm, 350mm, 15mm offset

FRONT HUBJoytech D041-B15

Disk, 6 bolt, 32h

SEATCLAMPVitus

34.9mm Diameter

Geometry & Sizing

Measurement instructions for Vitus Sommet range

Frame Size S M L XL
Rec Rider Height (Imperial) 5' 2" - 5' 6" 5' 6" - 5' 10" 5' 10" - 6' 2" 6' 2" - 6' 7"
Rec Rider Height (Metric) 160 - 170cm 170 - 178cm 178 - 190cm 190 - 201cm
Rec Inside Leg (Imperial) 26.5" - 30" 30" - 32" 32" - 34" 34" - 37"
Rec Inside Leg (Metric) 71cm - 76cm 76cm - 81cm 81cm - 86cm 86 - 94cm
(A)Seattube Length 380mm 432mm 483mm 520mm
(C) Effective Top Tube Length 600mm 620mm 640mm 665mm
(M) Reach 420mm 438mm 455mm 477mm
(B) Stack 592mm 597mm 606mm 615mm
(K) Chainstay Length 425mm 425mm 425mm 425mm
(F) Headtube length 105mm 110mm 120mm 130mm
(I) Headtube Angle 66.5° 66.5° 66.5° 66.5°
(J) Seat Tube Angle 73° 73° 73° 73°
Bottom Bracket Drop 45mm 45mm 45mm 45mm
(E)Wheelbase 1128mm 1146mm 1167mm 1196mm
Seatpost Diameter 31.6mm 31.6mm 31.6mm 31.6mm
Bottom Bracket 73mm BSA 73mm BSA 73mm BSA 73mm BSA
Headset  ZS44/28.6 - ZS56/40 ZS44/28.6 - ZS56/40 ZS44/28.6 - ZS56/40 ZS44/28.6 - ZS56/40
Front Mech  34.9mm Band 34.9mm Band 34.9mm Band 34.9mm Band
Rear Axle 135mm QR 135mm QR 135mm QR 135mm QR
Handlebar Width/Rise 740mm/15mm 740mm/15mm 740mm/15mm 740mm/15mm
Crank Length 175mm 175mm 175mm 175mm

Help

  • FAQs

Where can I buy Vitus bikes?

You can buy Vitus bikes directly through our exclusive retailers:

Evans Cycles

Wiggle

Chain Reaction Cycles

 

Do Vitus bikes come with Warranty?

All Vitus frames and framesets purchased from an authorised Vitus retailer or distributor are guaranteed for two (2) years. The warranty term begins with the original date of purchase. The original dated sales invoice or other dated proof of purchase is required. The warranty applies to the original purchaser only. For full information on our warranty process, visit: Warranty