Argon 18 E-117 Tri Disc
The Argon 18 E-117 Tri Disc is the perfect high-value entry point to triathlon. Its versatile geometry is designed for confident handling and high adjustability, allowing you to gradually dial in your fastest aero position.
Confidence. Comfort. Built to Last
Starting from: £3,900
Argon 18 E-117 Tri Disc: Confidence and Speed for Your First TT Bike
The Argon 18 E-117 Tri Disc is often the obvious choice for a first dedicated triathlon bike, blending a UCI-legal, race-ready design with crucial ease-of-use features. It prioritises confident handling and the added stiffness of thru-axles. With a highly adjustable open cockpit and Argon 18’s 3D Headset System, this frame is built to grow with you, easily accommodating athletes as they dial in their aggressive aero position over time.
Key Features
3D System
Get the best fit window without compromising the safety, steerer stiffness, or looks of your bike with Argon 18's 3D Technology.
Argon Fit System
Argon 18's fit system offers size-specific geometries to provide optimal performance and positioning for all sizes, guaranteeing no rider left behind.
Triathlon and TT Geometry
Tri and TT bikes are focused on aero performance, and the geometry reflects this. To allow the rider to achieve an aggressive aero position, the geometry is designed to put the rider in a more forward position.
Available Colours
Hypershift Blueberry / Silver
Flaming red
Black stealth
Geometry
| Geometry | XXS (44-46) | XS (47-50) | S (51-53) | M (54-56) | L (57-59) | XL (60-62) |
|---|---|---|---|---|---|---|
|
A
Seat tube Height (cm)
|
45.5 | 50.0 | 51.6 | 54.2 | 56.8 | |
|
B
Seat tube angle (deg)
|
78.0 | 78.0 | 78.0 | 78.0 | 78.0 | |
|
C
Head Tube Angle (deg)
|
72.0 | 72.0 | 72.0 | 72.0 | 72.0 | |
|
D
Top tube length (cm)
|
49.2 | 50.4 | 51.7 | 52.7 | 54.5 | |
|
E
Chain stay length (cm)
|
41.3 | 41.3 | 41.3 | 41.3 | 41.3 | |
|
F
Wheelbase (cm)
|
97.6 | 98.9 | 100.4 | 101.7 | 103.8 | |
|
G
BB Drop (cm)
|
7.0 | 7.0 | 7.0 | 7.0 | 7.0 | |
|
H1
Head Tube Length 3D (0mm) (cm)
|
4.9 | 6.0 | 7.7 | 10.4 | 13.1 | |
|
H2
Head Tube Length 3D (35mm) (cm)
|
8.4 | 9.5 | 11.2 | 13.9 | 16.6 | |
|
I
Stand Over Height (cm)
|
72.9 | 76.7 | 78.2 | 80.8 | 83.3 | |
|
L
Fork Length (Axle-to-crown) (cm)
|
37.5 | 37.5 | 37.5 | 37.5 | 37.5 | |
|
R
Fork Rake
|
4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
Example Builds
Build Options
Shimano 105
£3,900
- Frame E117
- Wheels DT Swiss E1800 SPLINE DB 32mm
- Tyres Vittoria Rubino Pro IV 28-622 TLR
- Tyre Clearance 30C (32mm)
- Groupset Shimano 105 R7100
Shimano 105 Di2
£5,800
- Frame E117
- Wheels ATTEN L42 wheelset
- Tyres Vittoria Corsa N.EXT TLR 28mm
- Tyre Clearance 30C (32mm)
- Groupset Shimano 105 Di2 R7150
SRAM Rival AXS
£6,300
- Frame E117
- Wheels ATTEN L42 wheelset
- Tyres Vittoria Corsa N.EXT TLR 28mm
- Tyre Clearance 30C (32mm)
- Groupset SRAM Rival AXS E1
Shimano Ultegra Di2
£7,250
- Frame E117
- Wheels Scope R6.A
- Tyres Vittoria Corsa N.EXT TLR 29c
- Tyre Clearance 30C (32mm)
- Groupset Shimano Ultegra Di2 R8150
SRAM Force AXS
£7,800
- Frame E117
- Wheels Scope R6.A
- Tyres Vittoria Corsa N.EXT TLR 29c
- Tyre Clearance 30C (32mm)
- Groupset SRAM Force AXS E1
Argon 18 E-117 Tri Disc FAQs
Everything you need to know before ordering a Argon 18 E-117 Tri Disc through Tri Harder.
Is the E117 a good first triathlon bike?
Yes — it’s specifically designed as an entry point into dedicated TT/tri riding. The adjustable 3D headset and open cockpit let you fine-tune your aero position as you gain experience, rather than forcing an aggressive setup from day one.
What's the difference between the E117 and the E119?
The E117 is Argon 18’s more accessible tri bike, built around adjustability and ease of use. The E119 is the brand’s flagship, with more advanced integration and a more aggressive race-focused setup.
Is the E117 UCI-legal?
Yes, it’s a UCI-legal frame, so it’s raceable in draft-legal and standard triathlon/TT events under UCI rules.
What groupset options are available on the E117?
Shimano 105, Shimano 105 Di2, SRAM Rival AXS, Shimano Ultegra Di2, and SRAM Force AXS, ranging from £3,900 to £7,800.
Can I get the E117 fitted at Tri Harder?
Yes — every custom bike order includes a free bike fit, and Ben can talk you through sizing and position before you commit to a build.
Available immediately:
We have the following bike(s) in stock
What We Think Of The Argon 18 E-117 Tri Disc
The E117 is where we point most people buying their first dedicated TT or triathlon bike. It's UCI-legal, race-ready, and doesn't punish you for still dialling in your position — the 3D headset system and open cockpit mean there's real room to adjust as your aero position evolves, rather than locking you into day-one geometry.
What we like
- Genuinely adjustable fit system — forgiving for riders still finding their aero position
- Thru-axles add real stiffness without the weight penalty of older tri frames
- Strong value at the Shimano 105 entry point relative to what you get
- Five build options from £3,900 to £7,800 — real room to grow within the same frame
Worth knowing
- Entry-level build (Shimano 105) uses a more basic wheelset and non-integrated cockpit — the aero gains ramp up meaningfully at the Di2 tiers
- Not the lightest or most aggressive frame in the range if you're already an experienced TT rider chasing marginal gains — that's more the E119's territory
Best For
First-time triathletes and TT racers who want a proper race bike without committing to the most extreme (and least forgiving) aero position on day one.
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