SwiftNeurogen MK3
The Neurogen MK3 is Swift's disc-brake triathlon and time-trial bike, developed in the Silverstone wind tunnel. Its Toray T800/T700 carbon frame has fully internal cabling, a finned fork that shrouds the front brake caliper, a semi-integrated aero seatpost and hidden thru-axle threads. A carbon cockpit with a hydration pack and top-tube nutrition storage comes on both complete builds, the Shimano Ultegra Di2 Evo and Comp.
- From
- €9,290€9,290£9,400
- Builds
- 2
- Sizes
- 4
- Frame weight
- —
Design sketch, generated from the manufacturer's photo
Our verdict
Overall
out of 100, average of 7 categories
A wind-tunnel-developed tri bike from a small brand, with cockpit hydration, top-tube storage and deep carbon wheels on both builds. Against it: a press-fit bottom bracket, a 28 mm tyre limit, no published pad stack or reach ranges, a 90 kg rider limit and an older 11-speed groupset on the Comp.
Scored Oct 2026
AI-drafted from the specs on this page and reviewed before publishing. Scores are relative to every bike in the catalog when they were given, so they drop as newer bikes and parts raise the bar.
- Aero
- 76/100
- Frame
- 70/100
- Components
- 74/100
- Hydration & storage
- 72/100
- Fit
- 60/100
- Practicality
- 58/100
- Price
- 70/100
Aero claims and front-end integration
Carbon grade, weight and warranty
Groupset, wheels and power meter
Hydration and storage in the frame
Sizes and adjustment range
Travel, standard parts, servicing
From the cheapest complete-bike MSRP
Bike duel
Frame & platform
Frame & fork
- Frame material
- Carbon (Toray T800/T700)
- Fork material
- Carbon (Toray T800/T700), tapered, finned around the brake caliper
- Frame sizes
- 49, 51, 54, 56
- UCI frame approval
- Approved 17 Jan 2023 as 'NEUROGEN MK3' (frame and fork), category ALL, sizes XS-L (4), code SWIFT-008 (UCI list version 2026.10.02)
Compatibility & standards
- Brake type
- Flat-mount disc
- Max rotor size
- 160 mm
- Wheel size
- 700c
- Max tire width
- 28 mm
- Bottom bracket standard
- Press-fit BB386 EVO (46 mm, 86.5 mm wide)
- Front axle
- 12x100 thru-axle (E-Thru)
- Rear axle
- 12x142 thru-axle (E-Thru)
- Cable routing
- Fully internal
Hydration & storage
- Integrated hydration
- Yes
- Hydration details
- Hydration reservoir in the cockpit (Time Zone Hydration Pack).
- Integrated storage
- Yes
- Storage details
- Nutrition storage on the top tube.
- Top tube bento box
- Yes
Fit & adjustability
- Aerobar system
- Swift Time Zone carbon aero bar with clip-on extensions, 400 mm, on a Swift carbon stem
- Seatpost type
- Semi-integrated Neurogen MK3 carbon aero seatpost with integrated clamp
Aerodynamics
- Testing method
- Wind-tunnel testing at Silverstone (UK)
- Tube profile
- Aero-shaped frame with a streamlined head tube, down tube and fork; finned fork around the front caliper
Travel, maintenance & warranty
- Headset bearings
- 1.5" integrated upper and lower (FSA No.55R on the Comp; the manual lists a Token headset for the Evo)
- Proprietary parts
- Neurogen MK3 seatpost and seat clamp, Time Zone cockpit
- Sold via
- Swift online stores and dealers
Photos
Design sketches
Builds & components
Highlighted rows differ between builds. Green marks the best value.
Neurogen MK3 Evo | Neurogen MK3 Comp | |
|---|---|---|
| Overview | ||
| Price (MSRP) | €9,290€9,290£9,400 | €7,490€7,490£7,800 |
| Type | Complete bike | Complete bike |
| Notes | GBP from Swift UK; EUR is the list price on Swift's EU store, which currently sells it at €7,899. Swift's global store lists it at £7,799. | GBP from Swift UK; EUR is the list price on Swift's EU store, which currently sells it at €4,999. Swift's global store lists it at £6,599. Swift lists a 12-speed Ultegra CN-M8100 chain and an 11-30 Ultegra CS-R8100 cassette on this 11-speed build. |
| Drivetrain | ||
| Groupset | Shimano Ultegra Di2 R8100 | Shimano Ultegra Di2 R8050 |
| Launched | 2021 · current generation | 2017 · replaced by Shimano Ultegra Di2 R8100 (2021) |
| Speeds | 12-speed | 11-speed |
| Electronic | Yes | Yes |
| Drivetrain | 2x12 | 2x11 |
| Shifters | Shimano Dura-Ace Di2 TT (ST-R9180 & SW-R9160) | Shimano Dura-Ace Di2 TT (ST-R9180 & SW-R9160) |
| Crankset | Shimano Ultegra R8100 | Shimano Ultegra R8000 |
| Chainrings | 52/36 | 53/39 |
| Crank length | 170 (49) / 172.5 (51-56) | 170 (49) / 172.5 (51-56) |
| Bottom bracket | FSA Pressfit 46x30mm | FSA Pressfit 46x30mm |
| Standard | Press-fit BB386 EVO | Press-fit BB386 EVO |
| Front derailleur | Shimano Ultegra Di2 R8150 | Shimano Ultegra Di2 R8050 |
| Rear derailleur | Shimano Ultegra Di2 R8150 | Shimano Ultegra Di2 R8050 |
| Cassette | Shimano Ultegra R8100 | Shimano Ultegra R8100 |
| Range | 11-30 | 11-30 |
| Speeds | 12-speed | — |
| Chain | Shimano CN-M8100 | Shimano CN-M8100 |
| Brakes | ||
| Brake levers | Shimano Dura-Ace Di2 ST-R9180 | Shimano Dura-Ace Di2 ST-R9180 |
| Brake calipers | Shimano Dura-Ace BR-R9270 | Shimano Dura-Ace BR-R9170 |
| Type | Hydraulic disc | Hydraulic disc |
| Rotors | Shimano Dura-Ace RT900 | Shimano SM-RT70 |
| Front rotor | 140 mm | 140 mm |
| Rear rotor | 140 mm | 140 mm |
| Wheels & tires | ||
| Wheelset | DT Swiss ARC 1100 Dicut | Swift Full Carbon 60/80 disc wheelset |
| Front rim depth | 62 mm | 60 mm |
| Rear rim depth | 80 mm | 80 mm |
| Material | Carbon | Carbon |
| Hubs | — | Swift Series straight-pull, 24H front / 28H rear |
| Spokes | — | DT Swiss Aerolite |
| Tires | Michelin Power Time Trial | Michelin Power Time Trial |
| Tire width | 25 mm | 25 mm |
| Type | Clincher with inner tube | Clincher with inner tube |
| Cockpit | ||
| Aerobar system | Swift Time Zone Aero Bar | Swift Time Zone Aero Bar |
| Material | Carbon | Carbon |
| Basebar | Swift Time Zone Aero Bar with clip bars | Swift Time Zone Aero Bar with clip bars |
| Basebar width | 400 mm | 400 mm |
| Material | Carbon | Carbon |
| Stem | Swift Full Carbon stem with carbon cover | Swift Full Carbon stem with carbon cover |
| Stem length | 100 | 100 |
| Headset | FSA No.55R | FSA No.55R |
| Saddle & seatpost | ||
| Saddle | Fizik Mistica S-Alloy | Fizik Mistica S-Alloy |
| Seatpost | Swift Neurogen MK3 Aero Seatpost | Swift Neurogen MK3 Aero Seatpost |
| Material | Carbon | Carbon |
| Included extras | ||
| Hydration system | Swift Time Zone Hydration Pack | Swift Time Zone Hydration Pack |
Neurogen MK3 price & value
Where it's cheapest
MSRPs converted at ECB reference rates of 2026-10-05 (1 EUR = 1.1204 USD = 0.8472 GBP). US prices exclude sales tax, so add your state's rate before comparing.
| Build | Market | MSRP | In EUR | vs cheapest |
|---|---|---|---|---|
| Neurogen MK3 Evo | Europe (EUR, incl. VAT) | €9,290 | €9,290 | cheapest |
| UK (GBP, incl. VAT) | £9,400 | €11,095 | +19% | |
| Neurogen MK3 Comp | Europe (EUR, incl. VAT) | €7,490 | €7,490 | cheapest |
| UK (GBP, incl. VAT) | £7,800 | €9,207 | +23% |
Ownership checklist
1 of 2 known checks pass, 5 not published by Swift. Why these checks
- ✕
Threaded bottom bracket
Press-fit BB386 EVO (46 mm, 86.5 mm wide)
- ?
UDH derailleur hanger
- ✓
Standard 12×142 mm rear axle
12x142 thru-axle (E-Thru)
- ?
Works with mechanical shifting
- ?
Fits third-party aerobars
Swift Time Zone carbon aero bar with clip-on extensions, 400 mm, on a Swift carbon stem
- ?
Rear disc wheel compatible
- ?
Fit kept when packed
Neurogen MK3 geometry
| 49 | 51 | 54 | 56 | |
|---|---|---|---|---|
| Rider height min | 168 cm5′6″ | 173 cm5′8″ | 178 cm5′10″ | 183 cm6′0″ |
| Rider height max | 173 cm5′8″ | 178 cm5′10″ | 183 cm6′0″ | 188 cm6′2″ |
| Stack | 490 mm19.3″ | 501 mm19.7″ | 511 mm20.1″ | 522 mm20.6″ |
| Reach | 383 mm15.1″ | 400 mm15.7″ | 418 mm16.5″ | 441 mm17.4″ |
| Seat angle min | 76.4° | 77° | 78° | 78° |
| Seat angle max | 76.4° | 77° | 78° | 78° |
| Head tube angle | 72° | 72° | 72° | 72.6° |
| Head tube length | — | 80 mm3.1″ | 90 mm3.5″ | 100 mm3.9″ |
| Effective top tube | 501 mm19.7″ | 515 mm20.3″ | 526 mm20.7″ | 552 mm21.7″ |
| Seat tube length | 504 mm19.8″ | 514 mm20.2″ | 522 mm20.6″ | 534 mm21″ |
| Chainstay | 405 mm15.9″ | 405 mm15.9″ | 405 mm15.9″ | 405 mm15.9″ |
| Wheelbase | 971 mm38.2″ | 986 mm38.8″ | 1,007 mm39.6″ | 1,028 mm40.5″ |
| BB drop | 66 mm2.6″ | 65 mm2.6″ | 66 mm2.6″ | 65.7 mm2.6″ |
| Fork length | 375 mm14.8″ | 375 mm14.8″ | 375 mm14.8″ | 375 mm14.8″ |
| Fork offset | 48 mm1.9″ | 43 mm1.7″ | 43 mm1.7″ | 43 mm1.7″ |
| Front centre | 566 mm22.3″ | 581 mm22.9″ | 602 mm23.7″ | 602 mm23.7″ |
| Wheel size | 700c | 700c | 700c | 700c |
| Crank length | 170 mm6.7″ | 172.5 mm6.8″ | 172.5 mm6.8″ | 172.5 mm6.8″ |
| Basebar width | 400 mm15.7″ | 400 mm15.7″ | 400 mm15.7″ | 400 mm15.7″ |
Side view & pad range
Drawn to scale (how to read it).
How the geometry rides
The Neurogen MK3 in size 51 against the middle size of 42 other bikes: tendencies from geometry, not a ride review (how to read this).
- Wheelbase986 mm38.8″
shortestlonger than 21% of 42 bikeslongest
Short wheelbase: tends to feel more agile in corners and less planted on long straights.
- Front centre581 mm22.9″
shortestlonger than 7% of 29 bikeslongest
Short front centre: more weight on the front wheel, which can make the front feel lighter to steer.
- Chainstay405 mm15.9″
shortestlonger than 48% of 53 bikeslongest
Good to know
Design
Swift's manual gives a maximum rider-plus-accessories weight of 90 kg for both the Neurogen MK3 Comp and Evo.
SourceFit
Swift's geometry chart on the product page lists rider heights from 168 to 188 cm across the four sizes; the 2022 manual's chart differs slightly (165-190 cm) and gives a 70 mm head tube for size 49 where the web chart shows 86 mm, so the size 49 head tube length is left out here.
SourceCompatibility
The manual specifies a flat-mount front caliper with a flip-flop adapter for 140 or 160 mm rotors and a 140 mm rear rotor (160 mm with Shimano's SM-MAR160PPA adapter). Tyres from 23 to 28 mm fit.
SourceMaintenance
The model-specific seatpost clamp should be tightened to 5-6 Nm, per the manual.
SourceRacing
The Neurogen MK3 frame and fork were added to the UCI's list of approved framesets on 17 January 2023.
SourceHistory
Swift presented the Neurogen MK3 in August 2022; the third generation moved the Neurogen to disc brakes.
Source
Neurogen MK3 FAQ
Is the Swift Neurogen MK3 UCI legal?+
Yes. The Swift Neurogen MK3 is UCI legal, so it can be raced in draft-illegal triathlon as well as UCI time trials.
How much does the Swift Neurogen MK3 cost?+
Manufacturer prices (MSRP): €7,490–€9,290 / £7,800–£9,400 across 2 listed builds and framesets: Neurogen MK3 Evo and Neurogen MK3 Comp.
What sizes does the Swift Neurogen MK3 come in?+
4 sizes: 49, 51, 54 and 56. The manufacturer recommends them for riders from 168 cm (5′6″) to 188 cm (6′2″).
What seat angle does the Swift Neurogen MK3 have?+
The effective seat tube angle can be set between 76.4° and 78°.
Does the Swift Neurogen MK3 have integrated hydration?+
Yes. Hydration reservoir in the cockpit (Time Zone Hydration Pack).
Does the Swift Neurogen MK3 have integrated storage?+
Yes. Nutrition storage on the top tube. A top tube bento box is integrated.
What is the tire clearance of the Swift Neurogen MK3?+
Up to 28 mm tires on 700c wheels.
Which groupsets are compatible with the Swift Neurogen MK3?+
Bottom bracket: Press-fit BB386 EVO (46 mm, 86.5 mm wide).
What builds of the Swift Neurogen MK3 are available?+
Neurogen MK3 Evo: Shimano Ultegra Di2 R8100; Neurogen MK3 Comp: Shimano Ultegra Di2 R8050.
Sources
- https://uk.swiftbicycles.com/bikes/neurogen-ev
- https://uk.swiftbicycles.com/bikes/neurogen-comp
- https://pt.swiftbicycles.com/products/neurogen-ev
- https://pt.swiftbicycles.com/products/neurogen-comp
- https://swiftbicycles.com/products/neurogen-ev
- https://swiftbicycles.com/products/neurogen-comp
- https://swiftbicycles.com/cdn/shop/files/neurogen_OK.jpg?v=1686753093
- https://myswiftbike.com/wp-content/uploads/2022/09/Neurogen-MK3-User-Manual-BRPT.pdf
- https://assets.ctfassets.net/761l7gh5x5an/7jA9krKzzy3lRXPzlm4uyn/7982d7114b9d62978cb87876ea476535/58780c70-6247-4448-8384-b145fa30aba9.pdf
- https://www.youtube.com/watch?v=rFY8NgbK_qE
Swift Neurogen MK3 data last updated · How the data is checked ·