Choosing your Look size
Look keeps its road range refreshingly straightforward to size. The two climbing and endurance models, the 785 Huez and 765 Optimum, fit true to size, so your usual road size is the honest starting point. The aero flagship, the 795 Blade RS in its latest third generation, is the interesting one: it now offers something like 350 fit combinations through stems, bar widths, spacers, fork offsets and seatpost setbacks, which means the frame size gets you in the right ballpark and the cockpit does the fine tuning. Let us walk through it.
You can explore the Look range at Bikeroom alongside this guide.
One caveat up front. The sizes below are a sound recommendation, not a cast iron promise. Look publishes its ranges across the whole size run rather than per size, so treat the height bands as guidance and let a proper fit have the final say.
Size at a glance
Find your height, cross check your inseam, read across. Only the Blade RS reaches down to XXS; the Huez and Optimum begin at XS and comfortably cover riders from around 160 cm.
| Rider height | Leg length (inseam) | 795 Blade RS (aero) | 785 Huez (climbing) | 765 Optimum (endurance) |
|---|---|---|---|---|
| under 162 cm | under 73 cm | XXS | XS | XS |
| 162 to 168 cm | 73 to 77 cm | XS | XS | XS |
| 168 to 174 cm | 77 to 81 cm | S | S | S |
| 174 to 182 cm | 81 to 86 cm | M | M | M |
| 182 to 190 cm | 86 to 91 cm | L | L | L |
| over 190 cm | over 91 cm | XL | XL | XL |
On the Blade RS the size gets you close and the cockpit does the rest, so do not agonise over a boundary. On the Huez and Optimum, trust your usual road size.
Measuring yourself
For height, stand against a wall without shoes and measure to the crown. For inseam, place a book spine up between your legs, press it to the wall like a saddle, and measure floor to spine. Inseam in centimetres times 0.66 gives a rough frame size to sanity check the table, but comparing stack and reach with a bike you already ride well is always more reliable.
The road line up
795 Blade RS (aero flagship)
The 795 Blade RS is Look's aero racer, long and low in character but now vastly adjustable, so the same frame can be set aggressive or surprisingly relaxed. That range of adjustment is exactly why the size choice is forgiving. Sizes: XXS, XS, S, M, L and XL.
| Frame size | XXS | XS | S | M | L | XL |
|---|---|---|---|---|---|---|
| Stack (mm) | 486 | 501 | 525 | 549 | 573 | 597 |
| Reach (mm) | 361 | 371 | 381 | 391 | 401 | 411 |
| Rider height | 155 to 162 | 160 to 168 | 166 to 174 | 172 to 182 | 180 to 190 | 188 to 200 |
The outgoing Blade RS was praised as racy but somewhat fixed in its position; the RS 3 answers that with its huge fit envelope. Rider heights here are inferred from Look's overall range, so verify against the exact frame.
785 Huez (climbing)
The 785 Huez is the lightweight climber, offered in Huez and higher grade Huez RS trims that share geometry. It carries race length reach with a touch more stack, so it is racy yet comfortable for long days in the mountains, and it fits true to size. Sizes: XS, S, M, L and XL.
| Frame size | XS | S | M | L | XL |
|---|---|---|---|---|---|
| Stack (mm) | 519 | 543 | 567 | 591 | 615 |
| Reach (mm) | 365 | 375 | 386 | 396 | 406 |
| Rider height | under 166 | 164 to 173 | 171 to 180 | 178 to 187 | over 185 |
Pick your normal road size and enjoy. The current frame sits about 9 mm taller in stack than the pre 2024 Huez, so only use older figures for used bikes of that era.
765 Optimum (endurance)
The 765 Optimum is the endurance model, and it has a distinctive signature: a tall, upright stack paired with a deliberately long reach and a slack head angle. The result is a planted, stable ride that tracks beautifully in a straight line. Sizes: XS, S, M, L and XL.
| Frame size | XS | S | M | L | XL |
|---|---|---|---|---|---|
| Stack (mm) | 534 | 558 | 582 | 606 | 630 |
| Reach (mm) | 359 | 369 | 379 | 389 | 399 |
| Rider height | under 166 | 164 to 173 | 171 to 180 | 178 to 187 | over 185 |
It ships with longer stems to suit that long and tall stance, so it feels roomy. Great for comfort and stability, a shade less darty on tight climbs. Rider heights are indicative rather than an official Look chart.
What Look riders say
The Huez earns a reputation for fitting exactly as expected, so most riders simply take their usual size, with the only note being that older bars ran short and a longer stem helped. The Optimum is also true to size but unmistakably long and tall, which owners love for stability and find slightly less lively on twisty terrain. The outgoing Blade RS was the one people had to work at, sometimes fitting long stems and a stack of spacers to dial in a race position, and the RS 3 was designed specifically to remove that friction with its wide adjustment range. As with any integrated aero cockpit, plan the setup at purchase.
Between two sizes?
Size down for a shorter, racier cockpit or up for more stack and calm. On the Blade RS the generous adjustment means either choice can be made to work, so lean on your proportions. If you would like a steer, share your height and inseam with us and we will point you the right way.
Shop Look
- Look 795 Blade for aero performance
- Look 785 Huez for lightweight climbing
- All Look bikes including the 765 Optimum
Prefer a recommendation? Ask our concierge
Whether it is the Blade's adjustability or the Optimum's long and tall stance, our concierge team can match your height, inseam and goals to the right Look and size. Speak with our concierge.
All sizing here is offered as general guidance and is not a fitting guarantee. Look publishes its rider height ranges across the full size run rather than per size, so per size bands are our interpretation, and geometry can change between model years. Confirm against the specific bike you are buying, ideally with a professional fit.
