Kinesis Aithein

Frame

Aithein

Specifications

Manufacturer
Kinesis
Name
Aithein
MPN
K-FS-AI-G
Discipline
Road
Material
Aluminum
Head Tube
Tapered
Max Tyre Width (mm)
28
Seatpost Diameter (mm)
31.6
Wheel Sizes
700c / 29"
Frame Size
47, 50, 53, 56, 59
BB Standard
BSA THREADED
BB Thread Type
BSA (English)
Rim Brake Mount
Single Bolt[1]
Di2 Compatible
Yes
Front Derailleur Mount
Braze-On
Weight (g)
1550
Sources
  1. [1] road.cc, checked 17 Aug 2026: Rim Brake Mount

Included Components

  • fork
    Kinesis Aithein Fork
  • headset
    Kinesis Aithein Headset

Compatibility

Kinesis Aithein is a Kinesis road 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

Brake calipers this frame mounts10

Direct-Mount roadMechanically compatible

FSA

Direct-Mount road

  • Both use a single bolt rim brake mount
GOSSAMER PRO ROADMechanically compatible

FSA

GOSSAMER PRO ROAD

  • Both use a single bolt rim brake mount
K-FORCE ROADMechanically compatible

FSA

K-FORCE ROAD

  • Both use a single bolt rim brake mount
K-FORCE ROADMechanically compatible

FSA

K-FORCE ROAD

  • Both use a single bolt rim brake mount
K-FORCE ROADMechanically compatible

FSA

K-FORCE ROAD

  • Both use a single bolt rim brake mount
K-FORCE ROADMechanically compatible

FSA

K-FORCE ROAD

  • Both use a single bolt rim brake mount
K-FORCE ROADMechanically compatible

FSA

K-FORCE ROAD

  • Both use a single bolt rim brake mount
K-FORCE ROADMechanically compatible

FSA

K-FORCE ROAD

  • Both use a single bolt rim brake mount
DURA-ACE DUAL-PIVOT BRAKE CALIPER R9100Mechanically compatible

Shimano

DURA-ACE DUAL-PIVOT BRAKE CALIPER R9100

  • Both use a single bolt rim brake mount
ULTEGRA DUAL-PIVOT BRAKE CALIPER R8000Mechanically compatible

Shimano

ULTEGRA DUAL-PIVOT BRAKE CALIPER R8000

  • Both use a single bolt rim brake mount

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

29er Full Carbon Rigid Mtb Plus ForkMechanically compatible

LightCarbon

29er Full Carbon Rigid Mtb Plus Fork

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 700c wheels
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 700c 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 700c 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 700c wheels
Allroad ForkMechanically compatible

Deda Elementi

Allroad Fork

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 700c wheels
BelvaMechanically compatible

Formula

Belva

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 700c wheels
Bomber ZMechanically compatible

Marzocchi

Bomber Z

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 700c wheels
Bomber Z1Mechanically compatible

Marzocchi

Bomber Z1

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 700c wheels
Bomber Z1 CoilMechanically compatible

Marzocchi

Bomber Z1 Coil

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 700c wheels
Bomber Z1 E-OptimizedMechanically compatible

Marzocchi

Bomber Z1 E-Optimized

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 700c wheels
Bomber Z2Mechanically compatible

Marzocchi

Bomber Z2

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 700c wheels
Bomber Z2 E-OptimizedMechanically compatible

Marzocchi

Bomber Z2 E-Optimized

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 700c wheels
Cutthroat Carbon ForkMechanically compatible

Salsa

Cutthroat Carbon Fork

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 700c wheels
Firestarter Carbon ForkMechanically compatible

Salsa

Firestarter Carbon Fork

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 700c wheels
🚲Mechanically compatible

Lauf

Grit

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 700c wheels
🚲Mechanically compatible

Lauf

Grit SL

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 700c wheels
JOSH BRYCELAND SELVAMechanically compatible

Formula

JOSH BRYCELAND SELVA

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 700c wheels
Pista LeggeraMechanically compatible

Columbus

Pista Leggera

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 700c wheels
RC32 29Mechanically compatible

X-Fusion

RC32 29

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 700c wheels
Road In-Route Fork 43mmMechanically compatible

ENVE

Road In-Route Fork 43mm

  • Both use a tapered 1-1/8" to 1.5" steerer
  • Both are built for 700c wheels

Frequently Asked Questions

What fits Kinesis Aithein?

On this page we list bottom brackets for this frame shell, brake calipers this frame mounts, 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 Kinesis Aithein with MTB components?

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