We are often asked, ‘What is the difference between FR1 and FR2’? Both are very much pure race machines, both can climb, both are ridiculously fast whilst retaining comfort and both are constructed using a mix of the same, high grade Torayca (Japan) T700/T800 High Modulus Carbon. And yet both bikes do offer something different. So, here is our quick guide to Redchilli FR1 and Redchilli FR2.
The most striking feature about FR1 is it’s aero profile and therein lies the initial clue as to what FR1 is designed for: SPEED.
The full aero profile has been wind-tunnel designed to enable it to slice through the air as efficiently as possible, with the ultimate result being to give you higher speed for less effort, for longer. FR1 also has a quite unique ‘T-Tube Aero Fin’ at the seat stay/seat tube juncture and while this helps to improve frame stiffness and responsiveness, it also improves wind-flow over the frame as the air is forced downwards and outwards, greatly reducing turbulence within the rear wheel. The seat tube has a ‘Half-Water Drop’ design as this is more effective at reducing drag, compared to a more conventional pointed rear edge. The seat stays are also aero profiled and so, all in all, every millimetre of FR1 has been optimised to reduce drag. Once on rolling roads and flat roads, FR1 is an absolute joy to ride. It is super stable and makes use of every watt of power being sent to the rear wheel. You truly have to experience FR1 to believe just how fast this bike is, and indeed, just how fast YOU could be.
Can FR1 climb? Yes indeed it can. For a full aero bike in fact, it is a very confident and stable climber, so you will not start rolling backwards the moment the road hits 15%.
While FR2 has a similar front end to its sibling, it is the rear triangle where things start to shape up differently. The seat tube is the heart of the difference for it is traditional round towards the upper section, yet tapers to a box section around the (already oversized) bottom bracket shell. The BB shell is married to huge box-section chain stays and so power transfer is pretty much immediate. The seat stays are also box-section; giving a super responsive ride, very little flex and storming power transfer. This results in huge amounts of power being delivered to the rear wheel and as the frame is so responsive, the rear wheel is more able to dig its teeth into the tarmac and propel you along.
FR2 is an amazing bike on the climbs. Due to its quality of build, it remains super stable at all times and unlike several super light frames, it does not ‘flick’ when pushed hard; thus climbing easier and more efficient. FR2 is also a confident performer on rolling roads and is able to adapt to whatever terrain is being covered. In essence, FR2 will never let you down; whatever you ask of it, it simply delivers.
So which is best for me?
FR1 is your best bet if you are generally riding rolling roads and flat roads, while FR2 is a more suited all-rounder and is more adaptable to climbing. These are relatively small differences, but if you have a particular focus, then these differences are to be considered.
Whichever you choose; with Redchilli you can be assured of confident and stable ride qualities. With our bikes, quality is the absolute priority.