GENERAL BIKE SIZE CHART
Getting the proper size bike is very important and if it is your first bike you should pay extra attention to it. The right sized bike will be more comfortable, more efficient and more fun to ride.
Choosing the right size frame as it depends on many factors like: type of bike, your height and your riding style.
Below you will find general explanation for each bike type. It is only a guide - if you have any doubt, give us a call (01) 8602615 or email us info@rothar.ie
HYBRID, COMMUTER AND CITY BIKES - shop our range
Hybrid & City Bikes are designed to give maximum comfort while cycling. That's why frame size should be big enough to give rider proper position between the seat and handlebars.
| Rider Height | Suggested Frame Size |
|---|---|
| cm | |
| 150 - 160 | XS |
| 160 - 170 | S |
| 170 - 180 | M |
| 180 - 190 | L |
| 190 - 200 | XL |
KIDS' BIKES - shop our range
Note on stabilizers: they are designed to give maximum stability while cycling. But it is not essential that the rider is able to reach the ground. However the rider must be able to to get on/off the bike safely. For kids able to cycle without stabilisers, the bike needs to be low enough for the child to ensure solid footing on the floor. For more experienced children one size bigger frame recommended.
| Height (in cm) | Frame size |
| 80 - 105 | 12 |
| 95 - 120 | 16 |
| 110 - 135 | 20 |
| 125 - 150 | 24 |
ROAD BIKES - shop our range
For road bike fitting, you also need to measure your inseam
What is Inseam?
The most important factor when choosing the frame size is your Inside Leg length (inseam). Basically it is distance from the floor to the highest possible crotch position.
How to measure your inseam?
The best way to do it is to undress (baggy or wide cut trousers, shoes cause mistakes) and find the highest possible crotch position. For this purpose you can use spirit level or even book, but remember it has to be completely horizontal. Measure the distance from the top of the spirit level (or the book) to the ground. If having problems ask somebody for help. For accuracy, repeat the measurement several times and calculate the average.
| Rider Height | Inseam | Suggested Frame Size |
|---|---|---|
| cm | cm +/- 2.5 | |
| 155 - 160 | 72 | 47cm |
| 160 - 166 | 73 | 49cm |
| 167 - 172 | 74 | 51cm |
| 173 - 179 | 78 | 53cm |
| 180 - 185 | 82 | 55cm |
| 186 - 191 | 85 | 57cm |
| 192 - 207 | 88 | 60cm |
GRAVEL BIKES - shop our range
| Rider Height | Suggested Frame Size |
|---|---|
| cm | |
| 150 - 160 | XS |
| 160 - 170 | S |
| 170 - 180 | M |
| 180 - 190 | L |
| 190 - 200 | XL |
HARDTAIL MOUNTAIN BIKES - shop our range
For MTB Off-Road use it is important to have frame small enough to handle cornering in demanding terrain and give ability to climb well. If the bike would be used for leisure or city cycling choose one size bigger frame for more comfort & stability.
| Rider Height | Suggested Frame Size |
|---|---|
| cm | |
| 150 - 165 | S |
| 160 - 175 | M |
| 170 - 185 | L |
| 180 - 198 | XL |
FULL SUSPENSION MTBs - shop our range
Full Suspension bikes are designed to perform in rougher terrain. Stability on higher speeds is crucial. If your theoretical frame size lies between two available sizes we recommend the larger size. Shorter stem & wider bars will also help with gaining confidence.
| Rider Height | Suggested Frame Size |
|---|---|
| cm | |
| 150 - 165 | S |
| 160 - 175 | M |
| 170 - 185 | L |
| 180 - 198 | XL |
