Bianchi mountain bike sizing
Bianchi's current mountain range is focused and simple. The Magma is the alloy cross country hardtail, while the T-Tronik X and E-Vertic FX cover the electric side, one a do it all sport e hardtail and the other a slack, playful trail e bike. On a mountain bike the size label matters less than reach and how you like to ride, so read the numbers together with your height. As a rule, sizing down gives a shorter, more playful and flickable feel, while sizing up adds stability at speed. Explore what is in stock on our Bianchi collection.
Please note. These recommendations are indicative and a starting point, not a guarantee of fit. Body proportions, flexibility and terrain all shift the answer, and Bianchi does not publish per size rider height charts for its mountain bikes, so the height bands here are our estimates. Confirm against the exact bike before you buy.
Quick size finder
| Rider height | Leg length (inseam) | Magma (XC hardtail) | T-Tronik X (e-hardtail) | E-Vertic FX (e-trail) |
|---|---|---|---|---|
| 155 to 165 cm | 68 to 73 cm | 38 | S | S |
| 165 to 173 cm | 73 to 78 cm | 43 | S | S |
| 173 to 181 cm | 78 to 83 cm | 48 | M | M |
| 181 to 189 cm | 83 to 88 cm | 53 | L | L |
| 189 to 198 cm | 88 to 93 cm | – | XL | XL |
How to measure yourself
Height. Stand barefoot against a wall with heels together and your back straight. Mark the top of your head and measure straight down to the floor.
Leg length (inseam). Barefoot, feet about 15 cm apart, press a hardback book spine up into your crotch as a saddle would sit. Measure from the top of the book to the floor. On a mountain bike your inseam matters for standover clearance and confident footing when you stop.
Bianchi Magma
The Magma is an approachable alloy cross country hardtail with a relaxed, forgiving position rather than a slammed race stance. It uses Bianchi's numeric frame sizes rather than S to XL.
| Size | Reach (mm) | Stack (mm) | Rider height |
|---|---|---|---|
| 38 | 389 | 570 | 155 to 167 cm |
| 43 | 403 | 590 | 165 to 175 cm |
| 48 | 425 | 615 | 173 to 183 cm |
| 53 | 442 | 635 | 181 to 192 cm |
Fit character: upright and forgiving, an easy going XC hardtail.
Bianchi T-Tronik X
The T-Tronik X is a sport electric hardtail with a comfortable, stable position for paths, dirt and light singletrack.
| Size | Reach (mm) | Stack (mm) | Rider height |
|---|---|---|---|
| S | 415 | 591 | 160 to 172 cm |
| M | 435 | 615 | 170 to 180 cm |
| L | 455 | 638 | 178 to 188 cm |
| XL | 475 | 662 | 186 to 198 cm |
Fit character: comfortable and stable, a versatile light trail e bike.
Bianchi E-Vertic FX
The E-Vertic FX is the slack, roomy trail e bike of the range, built to descend with confidence and stay planted at speed.
| Size | Reach (mm) | Stack (mm) | Rider height |
|---|---|---|---|
| S | 445 | 589 | 160 to 172 cm |
| M | 467 | 611 | 170 to 180 cm |
| L | 490 | 636 | 178 to 189 cm |
| XL | 510 | 659 | 187 to 198 cm |
Fit character: slack and playful, a confident modern trail descender.
What Bianchi riders find
Reviewers describe the E-Vertic FX as light, snappy and genuinely fun, with the slack head angle boosting confidence on descents, and the T-Tronik X as an easy going companion for mixed terrain that gains agility from the dropper post fitted on larger sizes. The Magma is valued as a comfortable, budget friendly first mountain bike rather than a race weapon. Across the range the position runs true to the reach figures, so use reach as your main guide.
Between two sizes?
On a mountain bike your choice at a size boundary shapes the ride. Size down for a shorter reach that feels more playful, flickable and easy to throw around, which suits tighter, technical trails. Size up for a longer, more stable cockpit that stays calm at speed and on steep descents. Comparing reach and stack with a bike you already ride is the most reliable way to decide.
Shop Bianchi mountain bikes
See current models and availability on our Bianchi collection.
Not sure whether a hardtail or a trail e bike suits you, or stuck between two sizes? We are happy to help. Talk to our concierge.
Figures are taken from official Bianchi geometry where possible. Rider height and inseam bands are indicative estimates, not official Bianchi numbers. This guide covers Bianchi's current mountain range; the older carbon Methanol and Nitron cross country models are no longer in the current lineup and are not included. Always confirm geometry against the exact bike and model year before buying.
