Vitus Nucleus 27.5

Frame

Nucleus 27.5

Specifications

Manufacturer
Vitus
Name
Nucleus 27.5
Discipline
Mountain
Material
Aluminum
Head Tube
Straight
Upper S.H.I.S
ZS44/28.6
Lower S.H.I.S
ZS56/40
Max Fork Travel (mm)
120
Seatpost Diameter (mm)
31.6
Wheel Sizes
650b / 27.5"
Frame Size
S, M, L, XL
Rear Axle Standard
12 × 148 mm (Boost)
BB Standard
BSA THREADED[1]
BB Thread Type
BSA (English)[1]
Disc Brake Mount
IS Mount[2]
Cable Routing
External
Sources
  1. [1] vitusbikes.com, checked 23 Aug 2026: BB Standard, BB Thread Type
  2. [2] mtb-threads.com, checked 17 Aug 2026: Disc Brake Mount

Included Components

  • fork
    Vitus Nucleus 27.5 Fork
  • headset
    Vitus Nucleus 27.5 Headset
  • seatpost
    Vitus Nucleus 27.5 Seatpost

Compatibility

Vitus Nucleus 27.5 is a Vitus mtb frame. Everything listed below was matched on a specification we hold for both parts: the interface each pairing actually depends on, such as freehub body, speed count, actuation or mounting standard. Where we could not verify that interface, the part is left out rather than assumed to fit.

Bottom brackets for this frame shell20

878Mechanically compatible

Token

878

  • Both are bsa threaded bottom bracket shells
BB29BSAMechanically compatible

Token

BB29BSA

  • Both are bsa threaded bottom bracket shells
BB386 crank to BSA frame thread Ceramic bearingsMechanically compatible

FSA

BB386 crank to BSA frame thread Ceramic bearings

  • Both are bsa threaded bottom bracket shells
BB392 crank to BSA frameMechanically compatible

FSA

BB392 crank to BSA frame

  • Both are bsa threaded bottom bracket shells
BB392BSAMechanically compatible

Token

BB392BSA

  • Both are bsa threaded bottom bracket shells
BSA Bottom Bracket (Shimano 24mm)Mechanically compatible

Cybrei

BSA Bottom Bracket (Shimano 24mm)

  • Both are bsa threaded bottom bracket shells
BSA Bottom Bracket (SRAM DUB)Mechanically compatible

Cybrei

BSA Bottom Bracket (SRAM DUB)

  • Both are bsa threaded bottom bracket shells
CARTRIDGE BOTTOM BRACKETMechanically compatible

Shimano

CARTRIDGE BOTTOM BRACKET

  • Both are bsa threaded bottom bracket shells
DEORE XT THREADED BOTTOM BRACKET 68/73 MM SHELL WIDTH (BB-MT800)Mechanically compatible

Shimano

DEORE XT THREADED BOTTOM BRACKET 68/73 MM SHELL WIDTH (BB-MT800)

  • Both are bsa threaded bottom bracket shells
DEORE XT THREADED BOTTOM BRACKET 68/73 MM SHELL WIDTH (BB-MT801)Mechanically compatible

Shimano

DEORE XT THREADED BOTTOM BRACKET 68/73 MM SHELL WIDTH (BB-MT801)

  • Both are bsa threaded bottom bracket shells
DUB-BSAMechanically compatible

Praxis

DUB-BSA

  • Both are bsa threaded bottom bracket shells
ISO Square Taper (BSA / ISO)Mechanically compatible

Token

ISO Square Taper (BSA / ISO)

  • Both are bsa threaded bottom bracket shells
JIS Square Taper (BSA / JIS)Mechanically compatible

Token

JIS Square Taper (BSA / JIS)

  • Both are bsa threaded bottom bracket shells
M24 – BSA THREADEDMechanically compatible

Praxis

M24 – BSA THREADED

  • Both are bsa threaded bottom bracket shells
Mega Exo Comet crank to 68/73mm frameMechanically compatible

FSA

Mega Exo Comet crank to 68/73mm frame

  • Both are bsa threaded bottom bracket shells
MegaExo Comet crank to BSA 100mmMechanically compatible

FSA

MegaExo Comet crank to BSA 100mm

  • Both are bsa threaded bottom bracket shells
MegaExo crankMechanically compatible

FSA

MegaExo crank

  • Both are bsa threaded bottom bracket shells
MegaExo Gamma Drive crank to BSA frameMechanically compatible

FSA

MegaExo Gamma Drive crank to BSA frame

  • Both are bsa threaded bottom bracket shells
MegaExo GOSSAMER crank to BSA frame Di2 compatibleMechanically compatible

FSA

MegaExo GOSSAMER crank to BSA frame Di2 compatible

  • Both are bsa threaded bottom bracket shells
MegaExo K-Force crank to BSA 68/73mm frameMechanically compatible

FSA

MegaExo K-Force crank to BSA 68/73mm frame

  • Both are bsa threaded bottom bracket shells

Headsets for this head tube20

Tapered HeadsetMechanically compatible

Hope

Tapered Headset

  • The upper cup is a ZS44 fit
  • The lower cup is a ZS56 fit
1 Degree GeoShift Performance Angle Headset - ZS44/28.6 / ZS56/40Mechanically compatible

Wolf Tooth

1 Degree GeoShift Performance Angle Headset - ZS44/28.6 / ZS56/40

  • The upper cup is a ZS44 fit
  • The lower cup is a ZS56 fit
110 Ceramic ZS44/28.6 / ZS56/40Mechanically compatible

Cane Creek

110 Ceramic ZS44/28.6 / ZS56/40

  • The upper cup is a ZS44 fit
  • The lower cup is a ZS56 fit
110 ZS44/28.6 / ZS56/40Mechanically compatible

Cane Creek

110 ZS44/28.6 / ZS56/40

  • The upper cup is a ZS44 fit
  • The lower cup is a ZS56 fit
Fifty ZS44/28.6 / ZS56/30Mechanically compatible

Cane Creek

Fifty ZS44/28.6 / ZS56/30

  • The upper cup is a ZS44 fit
  • The lower cup is a ZS56 fit
Fifty ZS44/28.6 / ZS56/40Mechanically compatible

Cane Creek

Fifty ZS44/28.6 / ZS56/40

  • The upper cup is a ZS44 fit
  • The lower cup is a ZS56 fit
Forty ZS44/28.6 / ZS56/30Mechanically compatible

Cane Creek

Forty ZS44/28.6 / ZS56/30

  • The upper cup is a ZS44 fit
  • The lower cup is a ZS56 fit
Forty ZS44/28.6 / ZS56/40Mechanically compatible

Cane Creek

Forty ZS44/28.6 / ZS56/40

  • The upper cup is a ZS44 fit
  • The lower cup is a ZS56 fit
Hellbender 70 Lite ZS44/28.6 / ZS56/40Mechanically compatible

Cane Creek

Hellbender 70 Lite ZS44/28.6 / ZS56/40

  • The upper cup is a ZS44 fit
  • The lower cup is a ZS56 fit
Hellbender 70 Slam ZS44/28.6 / ZS56/40Mechanically compatible

Cane Creek

Hellbender 70 Slam ZS44/28.6 / ZS56/40

  • The upper cup is a ZS44 fit
  • The lower cup is a ZS56 fit
Hellbender 70 Visco ZS44/28.6 / ZS56/40Mechanically compatible

Cane Creek

Hellbender 70 Visco ZS44/28.6 / ZS56/40

  • The upper cup is a ZS44 fit
  • The lower cup is a ZS56 fit
Hellbender 70 ZS44/28.6 / ZS56/40Mechanically compatible

Cane Creek

Hellbender 70 ZS44/28.6 / ZS56/40

  • The upper cup is a ZS44 fit
  • The lower cup is a ZS56 fit
InSet 2Mechanically compatible

Chris King

InSet 2

  • The upper cup is a ZS44 fit
  • The lower cup is a ZS56 fit
iRiX ZS44/ZS56Mechanically compatible

Industry Nine

iRiX ZS44/ZS56

  • The upper cup is a ZS44 fit
  • The lower cup is a ZS56 fit
Performance ZS Headset - Zero Stack - ZS44/28.6 / ZS56/40Mechanically compatible

Wolf Tooth

Performance ZS Headset - Zero Stack - ZS44/28.6 / ZS56/40

  • The upper cup is a ZS44 fit
  • The lower cup is a ZS56 fit
Premium ZS Headset - Zero Stack - ZS44/28.6 / ZS56/40Mechanically compatible

Wolf Tooth

Premium ZS Headset - Zero Stack - ZS44/28.6 / ZS56/40

  • The upper cup is a ZS44 fit
  • The lower cup is a ZS56 fit
ZS44/28.6 Upper CupShares a standard

Acros

ZS44/28.6 Upper Cup

  • The upper cup is a ZS44 fit
ZS56/30 Lower CupShares a standard

Acros

ZS56/30 Lower Cup

  • The lower cup is a ZS56 fit
ZS56/39.8 Lower CupShares a standard

Acros

ZS56/39.8 Lower Cup

  • The lower cup is a ZS56 fit
Classic Semi Integrated ZS Upper HeadsetShares a standard

Ritchey

Classic Semi Integrated ZS Upper Headset

  • The upper cup is a ZS44 fit

Seatposts for this seat tube20

AFTERBURNER seatpostMechanically compatible

FSA

AFTERBURNER seatpost

  • Both are 31.6mm
Ascend Dropper SeatpostMechanically compatible

Brand-X

Ascend Dropper Seatpost

  • Both are 31.6mm
Ascend II Dropper SeatpostMechanically compatible

Brand-X

Ascend II Dropper Seatpost

  • Both are 31.6mm
Ascend XL Dropper SeatpostMechanically compatible

Brand-X

Ascend XL Dropper Seatpost

  • Both are 31.6mm
Cascade Dropper PostMechanically compatible

PNW Components

Cascade Dropper Post

  • Both are 31.6mm
Coast Suspension Dropper PostMechanically compatible

PNW Components

Coast Suspension Dropper Post

  • Both are 31.6mm
Cross 25mm SeatpostMechanically compatible

Deda Elementi

Cross 25mm Seatpost

  • Both are 31.6mm
Divine 2.0Mechanically compatible

BikeYoke

Divine 2.0

  • Both are 31.6mm
Divine SLMechanically compatible

BikeYoke

Divine SL

  • Both are 31.6mm
Divine SL RascalMechanically compatible

BikeYoke

Divine SL Rascal

  • Both are 31.6mm
Duncan 2.0 Seatpost 0mm OffsetMechanically compatible

Syncros

Duncan 2.0 Seatpost 0mm Offset

  • Both are 31.6mm
Duncan 2.0 Seatpost 15mm OffsetMechanically compatible

Syncros

Duncan 2.0 Seatpost 15mm Offset

  • Both are 31.6mm
Duncan SL Seatpost 10mm OffsetMechanically compatible

Syncros

Duncan SL Seatpost 10mm Offset

  • Both are 31.6mm
Duncan SL Seatpost 25mm OffsetMechanically compatible

Syncros

Duncan SL Seatpost 25mm Offset

  • Both are 31.6mm
EA50 SeatpostMechanically compatible

Easton

EA50 Seatpost

  • Both are 31.6mm
eeSilk+ AlloyMechanically compatible

Cane Creek

eeSilk+ Alloy

  • Both are 31.6mm
eeSilk+ CarbonMechanically compatible

Cane Creek

eeSilk+ Carbon

  • Both are 31.6mm
Elite Seatpost 31.6mm x 367mmMechanically compatible

Thomson

Elite Seatpost 31.6mm x 367mm

  • Both are 31.6mm
Elite Seatpost 31.6mm x 410mmMechanically compatible

Thomson

Elite Seatpost 31.6mm x 410mm

  • Both are 31.6mm
Elite Setback Seatpost 31.6mm x 367mmMechanically compatible

Thomson

Elite Setback Seatpost 31.6mm x 367mm

  • Both are 31.6mm

Forks with a matching steerer and wheel size20

700C Disc Brake CX Fork Gravel Carbon ForkMechanically compatible

LightCarbon

700C Disc Brake CX Fork Gravel Carbon Fork

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
700C Disc Brake Gravel Carbon Fork Aero Gravel Bike ForkMechanically compatible

LightCarbon

700C Disc Brake Gravel Carbon Fork Aero Gravel Bike Fork

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
700C Disc Brake Gravel Carbon Fork Racing Gravel ForkMechanically compatible

LightCarbon

700C Disc Brake Gravel Carbon Fork Racing Gravel Fork

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
Firestarter Carbon ForkMechanically compatible

Salsa

Firestarter Carbon Fork

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
🚲Mechanically compatible

Lauf

Grit

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
🚲Mechanically compatible

Lauf

Grit SL

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
🚲Mechanically compatible

Lauf

TR Boost 29

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
Waxwing Carbon ForkMechanically compatible

Salsa

Waxwing Carbon Fork

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
Carbon Gravel Fork No.9 MCX+Mechanically compatible

Whisky Parts Co

Carbon Gravel Fork No.9 MCX+

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
JudyMechanically compatible

RockShox

Judy

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
Judy Gold RLMechanically compatible

RockShox

Judy Gold RL

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
MCX Monstercross Fork Monster crossMechanically compatible

Whisky Parts Co

MCX Monstercross Fork Monster cross

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
No.7 CX Disc Cyclocross ForkMechanically compatible

Whisky Parts Co

No.7 CX Disc Cyclocross Fork

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
No.9 15mm 150 Fat ForkMechanically compatible

Whisky Parts Co

No.9 15mm 150 Fat Fork

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
No.9 15mm Mountain ForkMechanically compatible

Whisky Parts Co

No.9 15mm Mountain Fork

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
No.9 CXLR ForkMechanically compatible

Whisky Parts Co

No.9 CXLR Fork

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
No.9 Cyclocross Fork Disc 12mm TaperedMechanically compatible

Whisky Parts Co

No.9 Cyclocross Fork Disc 12mm Tapered

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
No.9 MTN Boost ST ForkMechanically compatible

Whisky Parts Co

No.9 MTN Boost ST Fork

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
No.9 RD+ ForkMechanically compatible

Whisky Parts Co

No.9 RD+ Fork

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels
Recon Silver TKMechanically compatible

RockShox

Recon Silver TK

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 650b wheels

Frequently Asked Questions

What fits Vitus Nucleus 27.5?

On this page we list bottom brackets for this frame shell, headsets for this head tube, seatposts for this seat tube, forks with a matching steerer and wheel size. Each listing was matched on a specification we hold for both parts; anything we could not verify is omitted rather than assumed to fit.

Can I mix Vitus Nucleus 27.5 with road components?

Vitus Nucleus 27.5 is recorded as a mtb component. Some standards do carry across (cassette spacing at a given speed count, for instance), but cable pull ratio and chainline frequently differ between mtb and road groups, so check the specific pairing rather than assuming it carries over.