Finding the right bike size makes every ride more comfortable, more efficient, and more fun. At Wilde, we use a simple, proven process to help you land on the right frame size, whether you are brand new to cycling or have been riding for years.
This page walks you through how bike sizing works and what to expect when you dial it in at home.
Before we talk numbers, let’s start with how you ride. Bike fit is not one-size-fits-all, and your goals matter. Ask yourself the following:
What kind of riding are you planning to do?
Casual neighborhood rides, commuting, long road rides, gravel adventures, or trail riding all influence fit and frame choice.
Do you prioritize comfort or performance?
Some riders want a more upright, relaxed position. Others prefer a lower, more aggressive stance focused on speed and responsiveness.
What is your experience level?
New riders and experienced cyclists often feel best on different setups, even at the same height.
These answers help guide you toward a size and style that actually fits how you ride, not just how tall you are.
Here’s how you can check your standover height (inseam) right from home. You’ll need a pen, a large book, your tape measure and a wall.
Stand with your back against a wall and your feet flat on the ground. Slide a large book between your legs, pulling it up snugly like a bike seat.
Have a friend check that the book is perfectly level, then mark the spot on the wall at the top of the book.
Measure the distance from that mark to the floor. That is your standover height.
Now, take your standover height and reference the sizing chart on the bike product detail page. You’ll want to choose a frame that offers a bit of breathing room compared to your measurement. For instance, if your height is 33", a bike with a 32" standover height would be a great fit.
Combine your inseam measurement with your height to find a recommended frame size using bike-specific sizing charts. Road, gravel, and mountain bikes are sized differently, so the chart depends on the type of bike you are looking at.
| Rider Height | Rider Inseam | Frame Size (cm) | Alpha Size |
|---|---|---|---|
| 4'10" – 5'2" | 27" – 29" | 47 – 50 | XXS / XS |
| 5'2" – 5'6" | 29" – 31" | 51 – 53 | S |
| 5'6" – 5'9" | 31" – 32" | 54 – 55 | M |
| 5'9" – 6'0" | 32" – 34" | 56 – 58 | L |
| 6'0" – 6'3" | 34" – 35.5" | 58 – 61 | XL |
| 6'3" – 6'6" | 35.5"+ | 61+ | XXL |
| Rider Height | Rider Inseam | Frame Size (in) | Alpha Size |
|---|---|---|---|
| 4'10" – 5'2" | 27" – 29" | 13 – 14 | XS |
| 5'2" – 5'6" | 29" – 31" | 15 – 16 | S |
| 5'6" – 5'10" | 31" – 32" | 17 – 18 | M |
| 5'10" – 6'1" | 32" – 34" | 19 – 20 | L |
| 6'1" – 6'4" | 34" – 35.5" | 21 – 22 | XL |
| 6'4"+ | 35.5"+ | 23+ | XXL |
Think of this as your starting zone, not the final answer.
If you land between two sizes, that is very common. In those cases, your riding style and preferences help determine the best fit.
You may prefer the smaller size if you want:
You may prefer the larger size if you want:
In general, it is easier to fine-tune a slightly smaller frame than to make a too-large frame feel right. That is why we often start riders on the smaller option when performance or agility is the priority.
Safety and comfort always come first. When you stand over the bike, you should have clear space between you and the top tube:
From there, the most important step is the test ride. Set the saddle height using your inseam measurement and encourage you to ride the bike. Often, we will have you try two adjacent sizes so you can feel the difference for yourself.
The right size should feel natural, balanced, and comfortable, not stretched out or cramped.
Numbers get us close. Riding the bike confirms the fit.
Our goal is not just to sell you a bike that technically fits, but one that feels right every time you throw a leg over it. If you have questions, feel unsure, or want a second opinion, that is exactly what we are here for.
Get in touch, and we will help you find your size, your style, and your next favorite ride.
