RRP: £


Ready to step up to the challenge of off road riding? Meet the Nucleus range of trail centre inspired hardtails; the perfect introduction to proper mountain biking with lightweight aluminium frame and exceptional components package! The Nucleus 275 brings the new 27.5” (650b) wheel size to the masses with improved performance at entry level price!  Additional features include Suntour XCR suspension forks, Shimano Alivio shifters and deraileurs with Tektro hydraulic disc brakes and all for less than £600! The Nucleus 275; performance and style in a great value package!

Lightweight Mechanical Formed 6061-T6 Aluminium  Frame & Suntour XCR Fork
A lightweight 6061-T6 aluminium frame provides a bombproof chasis for trail centre assaults with great upgrade potential for fitting a chainguide thanks to the ISCG tabs.
Our aggressive trail geometry has been designed around 27.5” (650b) wheels and a 120mm travel fork; a short headtube and low bottom bracket keep the centre of gravity low to provide improved handling whilst the larger wheel size offers improved performance and handling.

Suntour XCR Air forks feature hydraulic Lock-Out & Rebound adjustment with 120mm of air sprung travel. A tapered alloy steerer and 32mm stanchions provide a stiff front end for precise steering and predictable handling.

Shimano Alivio & Suntour Groupset

Shimano Alivio shifters and deraileurs provide slick performance at entry level pricing; the Suntour XCM triple chainset will provide a wide range of gears that will cope with any ascent the trails can throw at you.
If fast paced singletrack assaults are your thing you need to have confidence in your brakes and on this front the Tektro HDC330 hydraulic disc brakes won’t disappoint!

Vitus Wheelset & Finishing Kit

Vitus provides the wheels and finishing kit for the Nucleus range of bikes. The Nucleus 275 features SRAM MTH-306 disc hubs on Vitus double wall alloy disc rims. Continental X-King tyres provide surefooted handling and low rolling resistance.
Finishing kit is supplied by Vitus with our lightweight 6061 alloy stem, bars and seatpost providing high performance components which have been colour coded to match the frame decals.


FrameMechanical formed 6061-T6 aluminium
ForksSuntour XCR Air LO-R-27.5
ChainsetSuntour XCM-T414
Bottom BracketSquare taper (BSA)
ShiftersShimano Alivio SL-M430
Front DerailleurShimano Alivio FD-M430
Rear DerailleurShimano Alivio RD-M430
RimsVitus Disc
Front HubSRAM MTH-306 Disc QR
Rear HubSRAM MTH-306 Disc QR
TyresContinental X-King
Front BrakeTektro HDC330 Hydraulic Disc
Rear BrakeTektro HDC330 Hydraulic Disc
HandlebarsVitus Riser Bar
StemVitus Alloy
HeadsetFSA Orbit 1.5B
SeatpostVitus alloy
SeatclampAlloy QR
Weight13.6kg/30lbs (Medium)


Size  Small Medium Large
Rec. Rider Height (ins)
Rec. Rider Height (cm)
Rec. Inside Leg (ins)
Rec. Inside Leg (cm)
Seat Tube 380mm 432mm 483mm
(A) Effective Top Tube 570mm 595mm 620mm
(G) Reach 396.28mm 419.95mm 442.29mm
(F) Stack 605.83mm 610.47mm 619.74mm
(D) Chainstay 425mm 425mm 425mm
(E) Head Tube 105mm 110mm 120mm
(B) Head Tube Angle 68˚ 68˚ 68˚
(C) Seat Tube Angle 74˚ 74˚ 74˚
Bottom Bracket Drop 43mm 43mm 43mm
Max Tire Size 27.5″ x 2.3″ 27.5″ x 2.3″ 27.5″ x 2.3″
WheelBase 1091.8mm 1117.3mm 1143.4mm
Seat Post Diameter 31.6mm 31.6mm 31.6mm
Bottom Bracket 73mm BSA 73mm BSA 73mm BSA
Head Set 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
Rear Axle 10mm x 135mm QR 10mm x 135mm QR 10mm x 135mm QR
Frame Material 6061-T6 Alloy 6061-T6 Alloy 6061-T6 Alloy
Based on Axle to Crown 519mm 519mm 519mm


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