In the usual Nicolai manner, the new "Helius RC" is also based on a four-bar linkage. So much for the familiar picture. But what are the differences to the lightweight all-mountain "Helius CC"? First and foremost the weight. Every component has been redesigned according to a strict diet plan: a lighter tube set, cut-out milled parts, ceramic-coated aluminium axles, titanium bolt kit and a DT Swiss "XR" carbon shock as standard. This adds up to a weight of 2408 grams in size S, for the frame including shock. The "RC" in size M that we rode came with a Rock Shox shock and heavier bolts and axles, contrary to the standard version, and therefore weighs in at a total of 10.65 kilograms. In the standard version, a further 150 grams are to be reduced. A value that is more than respectable for a bike with an aluminium chassis.
Another innovation: While the long-stroke rear triangle of the "Helius CC" rotated in a combination of needle and plain bearings, Nicolai is using a complete, low-maintenance and durable plain bearing for the first time on the "RC". In addition, the bearing play can be adjusted at all pivot points via axial preload. At 56.88 Nm/degree, the absolute stiffness of the aluminium racer is in the range of a Scott "Spark". However, due to the heavier frame, the Nicolai comes out on top in the STW rating (22.76 compared to 27.9 for the Scott). Nevertheless, the light overall construction of the bike gives the "RC" wings. You don't notice much of the frame's lack of stiffness on the trails. What the rider does notice, however, is the impressive propulsion.
The riding position is also very balanced - sporty, but not overstretched. A successful compromise between perfect handling for fast singletrack and light-footedness. Thanks to the moderate saddle rake, the "RC" does not shy away from steep downhill passages and offers control at its best, not least because of the wide 650 handlebars. Even with the lockout open, the rear triangle doesn't pay much attention to heavy pedalling attacks without reacting insensitively to obstacles. If you choose the long setting for the rear suspension travel, the spring curve is very flat. The short setting makes the suspension significantly firmer.
CONCLUSIONThe "Helius RC" carries a lot of race genes: full propulsion, sensitive rear suspension and yet perfect handling. A successful bike for everything from marathons to sporty tours.
Photos: W. Watzke, G. Grieshaber
