Argon 18 Equation Shimano 105 Asphalt Grey (S)
£2,700.00
12 months interest free credit, or pay in 3 · Cycle to Work available
The Argon 18 Equation Shimano 105 in Asphalt Black is the definitive choice for riders who demand performance over the long haul. Combining a race-inspired carbon layup with an endurance-focused geometry, the Equation delivers a smooth, vibration-dampening ride without sacrificing power transfer. Outfitted with the ultra-reliable Shimano 105 12-speed drivetrain, this is the perfect partner for legendary sportives, epic club rides, and conquering the rolling terrain of the countryside.
- Shimano 105 R7100 groupset A dependable, race-proven 12-speed groupset trusted by amateur riders progressing through training and competition.
- DT Swiss E1800 Spline wheelset A wide-rim 32mm wheelset for added comfort over distance, running on a reliable Ratchet freehub system.
- Generous tyre clearance 32c tyre clearance (34mm) gives room to size up for comfort or all-road riding without changing frames.
- FSA integrated headset The FSA NO.69 SRS System uses sealed cartridge bearings for smooth, precise, long-lasting steering performance.
1 in stock
About this bike
The Equation is Argon 18's do-it-all road bike — built to make the most of long summer miles without the price tag of the Nitrogen range. This build runs a full Shimano 105 groupset on wide 32mm tyre clearance, giving it genuine all-road versatility alongside quick, confident road manners. Finished in Asphalt Grey on a size S frame.
Argon 18 Equation Shimano 105 Asphalt Grey (S) Features
Component highlights
Shimano 105 R7100
A very reliable group that many amateur cyclists choose for training and competition as they progress through the ranks.

FSA NO.69 SRS System
The FSA NO.69 SRS System is a durable and reliable integrated headset solution designed for smooth steering performance. With its sealed cartridge bearings and lightweight construction, it ensures precise handling and longevity.

Geometry
Geometry - Size
| XXS (44-46) | XS (47-50) | S (51-53) | M (54-56) | L (57-59) | XL (60-62) | |
|---|---|---|---|---|---|---|
| A | 42.0 | 45.0 | 48.5 | 52.0 | 55.5 | 59.0 |
| B | 75.5 | 74.9 | 74.3 | 73.7 | 73.1 | 72.5 |
| C | 70.3 | 71.3 | 72.0 | 72.0 | 72.0 | 72.5 |
| D | 49.6 | 51.6 | 53.7 | 55.8 | 58.0 | 60.4 |
| E | 41.7 | 41.7 | 42.0 | 42.0 | 42.0 | 42.0 |
| F | 98.1 | 98.9 | 99.7 | 101.3 | 103.0 | 104.3 |
| G | 8.0 | 8.0 | 7.8 | 7.8 | 7.5 | 7.5 |
| H1 | 8.4 | 10.1 | 12.0 | 14.1 | 16.6 | 18.9 |
| H2 | 10.9 | 12.6 | 14.5 | 16.6 | 19.1 | 21.4 |
| I | 67.3 | 70.0 | 73.4 | 76.4 | 79.7 | 82.7 |
| L | 38.7 | 38.7 | 38.7 | 38.7 | 38.7 | 38.7 |
| R | 5.2 | 5.2 | 4.7 | 4.7 | 4.7 | 4.7 |
| T | 6.8 | 6.1 | 6.2 | 6.2 | 6.2 | 5.9 |
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You Get So Much More Than a Bike
We're Specialists
Our experienced, dedicated in-house team is ready to help you find the perfect model and custom specification for your goals.
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A free, expert bike fit is included with every custom build — perfect geometry from day one.
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Built, Checked, Tested
Every bike is meticulously built, tuned and tested by Stef — guaranteed ready for your first ride.
Is the Equation suitable for racing?
While its primary focus is endurance and sportives, the Equation is plenty fast for local circuit races or club tens. Its carbon layup is stiff enough for sprinting, though it prioritises comfort over pure aerodynamic aggression.
What is the maximum tyre clearance?
The Equation is optimised for modern road standards and can comfortably accommodate tyres up to 30mm or 32mm (depending on the rim width), allowing you to run lower pressures for increased comfort on rougher road surfaces.
How does the "Asphalt Black" look in person?
It is a sophisticated, stealthy finish. It features a matte/satin texture that resists fingerprints well and provides a premium, understated look that won’t go out of style.
Can I fit mudguards to the Equation?
The Equation is designed as a performance road bike; while it doesn’t have traditional eyelets for full-length guards, it is compatible with many high-end clip-on mudguards (like SKS Raceblades) for winter protection.
Come and See This Bike in Dereham
Tue–Fri 10–5 · Sat 9–5 · Unit 7 Astra Court, Greens Road, NR20 3TR









