Argon 18 E117 Shimano 105 (S)
£3,900.00
The Argon 18 E117 Shimano 105 is built for triathletes who want race-ready handling without the compromises of a first aero bike. This build pairs a dependable Shimano 105 R7100 groupset with Argon 18’s integrated brake system and Profile Design aerobars, giving you a genuinely versatile setup for training and race day alike. In stock now at Tri Harder in a Small frame.
Key Features
- Shimano 105 R7100 groupset — a proven, easy-to-service groupset trusted by amateur triathletes moving up through the ranks.
- Argon 18 Integrated Brake System — disc brakes built into the frame for a clean aero profile without sacrificing control.
- Profile Design Sonic/Ergo/39a aerobars — fully adjustable armrests and extensions to find your optimal race position.
- DT Swiss E1800 SPLINE DB 32mm wheels — a dependable aero wheelset ready to race straight out of the box.
- Integrated cable routing — clean lines, reduced drag, easier long-term maintenance than fully hidden systems.
- E-117T Disc seatpost and Prologo Dimension-Tri 143 saddle — purpose-built for sustained aero positions.
- 30C/32mm tyre clearance — room to run wider rubber for comfort and grip without changing the frame.
Geometry
Fit (Stack and Reach)
Description
Argon 18 E117 Shimano 105
An aero triathlon bike built to be your first — and last — dedicated TT setup
The E117 sits at the entry point of Argon 18’s triathlon range, but nothing about the spec feels like a compromise. Integrated cabling, Argon 18’s own brake system, and a DT Swiss wheelset come together in a frame designed for stable, confident handling at speed — exactly what you want when you’re still learning to hold an aero position under race fatigue.
This particular build runs Shimano 105 R7100, a groupset that’s earned its reputation with age-group triathletes and time trialists for being reliable, easy to service, and genuinely capable across long training blocks and race day alike.
Cockpit and fit
The Profile Design Sonic/Ergo/39a aerobars are mounted on an Argon 18 carbon basebar via a Profile Design 1/Seventeen stem set at -17°, giving a wide range of adjustment for armrest and extension position. Paired with a Prologo Dimension-Tri 143 saddle and the dedicated E-117T Disc seatpost, the cockpit is built to let you dial in a sustainable, aerodynamic position rather than fight one.
Wheels, tyres and stopping power
DT Swiss E1800 SPLINE DB 32mm wheels come fitted with Vittoria Rubino Pro IV 28mm tyres (30C/32mm clearance), and the whole package is reined in by Argon 18’s Integrated Brake System with TRP 140mm rotors front and rear — disc braking in all conditions, not just dry ones.
Sizing
This bike is in stock in a Small (51–53cm rider height range) — see the full geometry table below for exact measurements.
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Is the Argon 18 E117 a good first triathlon bike?
Yes — Argon 18 positions the E117 specifically as the entry point into their triathlon range, and it’s built for stable, forgiving handling rather than the twitchier feel of a full race bike, which makes it a genuinely good choice for a first dedicated TT setup.
Will Shimano 105 hold up for regular triathlon training and racing?
Shimano 105 R7100 is a mechanical, reliable groupset — it’s a common choice for age-group triathletes because it’s straightforward to service and performs consistently through long training blocks, not just on race day.
What size is this bike?
This particular bike is a Small, suited to riders roughly 51–53cm frame size. Come in for a bike fit to confirm — reach and stack adjust independently via the Profile Design aerobars regardless of frame size.
Does the E117 come with disc brakes?
Yes — it uses Argon 18’s own Integrated Brake System with TRP rotors (140mm front and rear) for consistent stopping power in wet or dry conditions.
Can I fit wider tyres than the stock Vittoria Rubino Pro IV?
The frame has clearance up to 30C (32mm), so there’s room to size up from the stock 28mm tyres if you want more comfort or grip without changing the frame.
Is a bike fit included?
Yes — every bike from Tri Harder comes with a free bike fit, so you’ll leave with your position properly dialled in, not just a bike off the shelf.
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