Bike Sizing Guide

Road Bike Sizing Chart 

Rider Height		Frame Size Suggested
Feet and Inches	Centimetres	Centimetres	Size
4' 10" - 5' 0"	148 - 152	47 - 48	XXS
5' 0" - 5' 3"	152 - 160	49 - 50	XS
5' 3" - 5' 6"	160 -168	51 - 52 - 53	S
5' 6" - 5' 9"	168 - 175	54 - 55	M
5' 9" - 6' 0"	175 - 183	56 - 57 - 58	L
6' 0" - 6' 3"	183 - 191	58 - 59 - 60	XL
6' 3" - 6' 6"	191 - 198	61 - 62 - 63	XXL

Triathlon and Time Trial Bike Sizing Chart 

Rider Height		Frame Size Suggested
Feet and Inches	Centimetres	Centimetres	Size
5' 0" - 5' 3"	152 - 160	49 - 50	XS
5' 3" - 5' 6"	160 - 168	51 - 52	S
5' 6" - 5' 9"	168 - 175	53 - 54	M
5' 9" - 6' 0"	175 - 183	55 - 56	L
6' 0"- 6' 3"	183 - 191	57 - 58	XL
6' 3" - 6' 6"	191 - 198	60 - 61	XXL

Body Scanning - Custom Ergonomic Bike Fitting

Fitting Services - £75

FREE With Any New Bicycle Purchase

10 Reasons Why You Need A Bike Fit

1. Do your hands get numb.
2. Does your neck and back hurt.
3. Struggle to find comfort with your saddle. 
4. Do you fatigue quickly during rides.
5. Struggle with multi day rides
6. Need to improve our climbing and descending.
7. Previous sporting injuries causing issues
8. Looking for extra watts
9. TT/Tri fits
10. Life is to short to ride in pain. 

The service we offer generally takes around 1.5hrs - 2hrs Hours this gives us plenty of time to really get to know the rider, the problems they may have when riding and time to look into their biomechanics and movement patterns in order to help them get the most out of their position. 

WHY DO YOU NEED A BIKE FIT? Simply put, anyone who intends to spend any amount of time on a bicycle will benefit from having their position assessed. Whether you are looking to improve your performance or just riding to work without that annoying back pain. Every element of the rider / bike interface is meticulously optimised whilst taking into account the riders own physiology and asymmetry.

A bike fit can make a huge difference to your power delivery – ensuring you are recruiting muscles optimally and efficiently, simply put we will make you go faster, in more comfort for longer! Every aspect of the rider / bike interface is meticulously scrutinized and optimised.

Bike fitting can be used to overcome a broad variety of issues such as numb hands, pelvic discomfort, knee pain, muscular pain, neck ache and numb feet to name a few. Someone once said cycling is all about pain – we don’t agree with this!

The Process

It is important to understand that bike fitting is a process - not an event. When working with an ever changing, highly adaptable entity like the human body you will often need more than one session to completely optimise the position. The first session tends to yield the biggest changes and results with those changes being tweaked and refined over time. Consider physiotherapy, you don’t go to a physiotherapist once! Bike fit is no different and by working together with our clients over a period we can achieve far greater results.

Triathlon Fit

Many people over-complicate triathlon bike setups. The key parameters are essentially the same; you simply have different riding positions to take into account. One aspect of the fit that has to commonly be overcome with triathlon bikes is maintaining an open “hip angle” this is the angle between the torso and the upper leg. Given that most triathletes spend a large proportion of their time on the extensions in a more prone position it is imperative that this is optimised. Closing down this angle beyond the rider’s range can interfere with pedalling dynamics whilst increasing susceptibility to injury.

Bike Fits for Women

A woman’s anatomy is very different to that of a man’s therefore it is essential that ladies have their position checked. Women typically possess proportionally longer femurs (compared to torso), typically a wider pelvis and narrower shoulders – all aspects to be taken into account. Unfortunately the historical “shrink and pink” approach of the bike trade towards women’s bikes dictates that women are generally poorly catered for when considering frame geometry – scaling down men’s bikes and steepening the seat angles when in actuality women, due to their proportionally longer femurs potentially require a slacker seat angle to optimise their position over the bottom bracket and pedals. Ultimately bike fitting is about the individual, male or female and each session is tailored to each rider’s individual needs.

Feed Back

Once the fitting process is complete you need to get out on the open road and ride. We recommend to all customers to contact us once they have rode with the new set up for 20hrs and let us know how they feel. If you feel the need to return, not a problem. We don't charge any further cost to call back and have further adjustments carried out. 

The System - Body Scanning CRM

The Body Scanning CRM bike was developed in cooperation with orthopaedic specialists; physiotherapists; cyclists; and engineers. The system allows physical measurements to be taken without the need for direct physical contact between sales representatives and clients, seeking to find their ideal ergonomic bicycle seat position and to calculate their perfect frame geometry.

How and what is measured?

A bicycle finely tuned and adjusted precisely to your body’s ergonomic needs will increase your power, while decreasing your health risks, and also reduce back and neck pain commonly found within cycling. We will recommend an ergonomic fitting to your bicycle, based on the correct analysis of your individual biometric data and the bicycle’s designated purpose.

Saddle Height

It all starts with the saddle measurement and its correct height. It’s measured with an adjustment gauge called the bike adjustment device. The measurement is taken from the centre of the crank up to the upper- edge of the saddle.

Saddle Offset

The saddle offset or saddle position is crucial for the right feel and power while pedalling. The saddle offset is measured vertically from the button bracket to the front of the saddle The angle between the force affecting the foot pedal and the force affecting the crank arm is determined by the saddle offset This angle must be optimised for the full crank arm rotation (360 degrees). The saddle offset is measured with the adjustment gauge (Bike Adjustment Device).

Distance Saddle - Handlebar

The correct distance between the saddle and the handlebar will depend on upper body length and the seat position. It’s measured from the front end of the saddle to the handle bar grip. This distance often determines the choice of the bicycle frame. The distance between the saddle and the handle bar is either measured with the adjustment gauge (Bike Adjustment Device) or it is calculated with the top tube calculator, in the event that the frame only exists as geometrical information in a catalogue.

Handlebar Height

The handlebar height is adjusted relative to the saddle height. In this case there is a lot of tolerance; with three basic back postures: comfortable; sportive and aggressive (race), with many positions in between. These three seat positions always correspond to the chosen bicycle category. The handlebar height is measured with the adjustment gauge (bike Adjustment Device)

Frame Height

The frame height is a tangential issue. Primarily, the three contact points where you touch the bicycle are important for the right ergonomic feel. When there were still diamond frames with horizontal top tubes, the frame height (usually measured from the button bracket to the centre of the top tube) was the indicator for the over-all frame size. In our times of sloping top tubes and spring mounted seat posts, the top tube length has emerged as the vital factor. The Body Scanning trained staff with advise of the best frame size to suit each individual customers needs.

Crank Arm Length

A longer crank arm basically means more torque will be transferred to the bottom bearing. The difference between 175 mm and 177.5 mm means an approximate 1.5%n increase in torque of approx. 1.5%. That suggests the longer the crank, the more efficiency, which is basically correct - however, the physical abilities of the cyclist and his leg length must be considered in the equation. With mountain bikes, ground clearance is an additional factor, which is why crank lengths of max. 175 mm are offered in this category. The standard-crank length with trekking and city bikes is 170 mm. In this case, the efficiency factor is less important than comfort. A racing cyclist with competitive ambitions requires other values yet again.

Seat Position

The ergonomics of every cyclist are different. For example, it is important for the the ergonomics of the city cyclist to have a comfortable seat; a, good view of the traffic; and quick mounting and dismounting ability at stops. By comparison, the racing cyclist depends on a streamlined seat, high pedalling frequency and ideal efficiency for perfect ergonomics.

Please call 01695-577240 or email info@thebicyclelounge.co.uk to book your fit.