We have partnered with bike fit, ergonomics, and technology specialists for over a decade, to continually develop and improve our exclusive roll: Perfect Fit system to help people find the right sized bike in our shops. Building on this experience, we have translated this same proven system into a simple online tool to help you find your perfect bike fit at home.

The first step is to complete 3 simple body measurements you can easily measure yourself at home. We then combine your unique body geometry with the other information you share with us in your rider profile to develop your roll: Perfect Fit recommendations. 

We use these recommendations to build your new bike from scratch. First selecting the correct frame size, and then the correct contact points and set up to complete your new ride. 

We then mark each key contact point position, and provide you with the information you need to make sure your bike is set up correctly when it arrives. 

We choose to invest so much time, energy and care in making sure every bike we build is fit perfectly to you, because we know from experience that the correct fit can make or break your ride.  



Build Your Bike


If you don't have a tape measure handy to plug in the roll: Perfect fit info, or are buying a bike as a gift for someone else, you are still able to select your ideal size based on the sizing recommendation below. Our bikes are designed to fit riders ranging in height from 5’ to 6’4”, using 3 distinct frame sizes, and contact points tailored to each individual frame size. Select your ideal match from the chart and our team will follow up with you to confirm everything before we build your new bike.

Detailed Dimensions Size 1 Size 2 Size 3
Rider Height (feet) 5'0" - 5'5" 5'6" - 5'11" 6'0" - 6'4"
Rider Height (cm) 152 - 165cm 167 - 180cm 182 - 193cm
Head Tube Angle 70.5° 71.0° 71.0°
Seat Tube Angle 72.0° 71.5° 71.0°
Top-Tube Length 580mm 600mm 620mm
Seat-Tube Length 430mm 485mm 540mm
Chain-Stay Length 450mm 450mm 450mm
Bottom Bracket Drop 60mm 60mm 60mm
Fork Rake 45mm 45mm 45mm
Fork Length 405mm 405mm 405mm
Head-Tube Length 145mm 170mm 195mm
Stand Over Height 710mm 755mm 795mm
Wheel Base 1067mm 1077mm 1093mm
Please consider that our frame geometries are also designed for the reach from saddle to handle bars to ‘grow’ as the saddle is raised. If you find yourself on the border between sizes, our recommendation is to size down for a more nimble, maneuverable feel to your ride. Or size up for a taller handle bar position and roomier cockpit. 

If you are still unsure of your size, please drop us a line at hello@rollbicycles.com and we’ll help you pick!