Last November I covered the various types of recumbents based on length. To review, the long wheel base (LWB) ‘bents are super comfy machines made for putting in long touring miles in a fairly upright seating position, whereas the short wheel base (SWB) ‘bents tend to be more versatile bikes used for racing, commuting, or just about anything else.
The SWB versatility is largely due to the variety of designs out there. Today I’ll cover some designs as they relate to the rider’s seated height from the ground.
You’ll often hear SWB ‘bents categorized as low-, mid-, or high-racers. Low-racers seat you very close to the ground— so low that you can balance yourself by placing your palms down. They’re aerodynamic and fast bikes that are good for flat tracks, but have fallen out of fashion in the recumbent community. A low-racer is difficult to ride given the seat’s nearly horizontal position, and isn’t too visible to traffic on the road. Builders are forced to get creative with the drivetrains and complex chain lines given the limited amount of space between the rider and the ground. They often have a small 20” or 16” front wheel paired with a larger 700c rear wheel. Performer Cycles and M5 still have some low-racer options.
High-racers are also fast bikes, and offer much better visibility in dense traffic. They tend to be light-weight and have simple, straight chain lines. They have dual 700c wheels, and their frames are usually American-style “stick frames” exemplified by Bacchetta or European-style “s-frames” such as the Pelso Brevet and Schlitter Freestyle. The largest disadvantage with high-racers (especially stick frames) is they don’t easily accommodate short riders. If you are under 5’9” or so, you’ll likely have trouble getting your feet down at a stop on a high-racer. The problem is as you slide the seat position forward along the frame’s tube to be able to reach the pedals (which are positioned at an elevated level), you are also sliding the seat higher from the ground. The S-frame design helps alleviate the problem a bit by sloping the frame tube down. Most recently, Metabike introduced a novel multi-tube high-racer design (the Mystique) with a seat height that allows riders as short as 5’6” to get their feet down (being 5’8”, this particular bike is appealing to me as I’ve always wanted a high racer but I’m not tall enough to feel safe on one).
Given the high seating position and bottom bracket (i.e., where the pedals are), high-racers aren’t made for off-road terrain where you may need to quickly get your feet down to avoid falling over (that being said, there is one crazy exception out there).
The Bacchetta Corsa (left) and Pelso Brevet (right) are two examples of modern high-racers with dual 700c wheels. Note the respective stick and s-shaped frame designs, as well as the simpler chain lines requiring only one idler under the seats.
As you may expect, mid-racers fall between the two extremes. They’re the most popular choice of SWB ‘bent since they offer much of the visibility and aerodynamics of a high racer without limiting rider height. You’ll find options for racers, commuters, and tourers in this category, along with a variety of options in wheel size, suspension, seat type, drivetrain, and steering to accomodate all sorts of riding and terrain. Take a look at Azub, HPV, Lightning Cycles, and Performer Cycles for good mid-racer options. Most of my recumbent bike experiences have been on mid-racers, and my current everyday bike is a commuter-type mid-racer design (I’ll talk about it in a future post).