ARGON GTB PI

We weld all of our frames by hand using the TIG (Tungsten Inert Gas) method. Our specially trained welders have many years of experience, our lead welder has worked in-house for over 20 years. For each model and frame size we build a precise welding structure called the frame jig. In this jig, the CNC-cut tube sets are precisely assembled and fixed in place with all turned and milled parts of the frame to be welded. The frame components are first tacked together with individual spot welds at precise points in a defined sequence, and then, to minimize distortion and stresses, welded in several passes.

We manufacture all NICOLAI frames from 7020-T6 aircraft aluminum and are convinced that this alloy is the superior material for mountain bike construction. Compared to the 6061-T6 (AlMg1SiCu) alloy normally used in bicycle construction, 7020-T6 (AlZn4.5Mg1) has about 30% higher tensile strength and about 20% higher elastic limit. Where carbon frames can spontaneously fail in the event of an overload, NICOLAI bikes are calculated and designed to deform in a safely defined area of the frame in the event of an overload, significantly reducing the risk of serious crashes and injuries. A NICOLAI aluminum frame is designed to withstand many years even under severe competition conditions.

Our RADO dropouts guarantee perfect alignment between the front and rear wheels of the bike. Finalising the toe and camber of the rear wheel and fixing the RADO in an exact position means that every NICOLAI is always one hundred percent straight. Despite precise preparatory work, construction methods and the utmost care, any aluminum frame is subject to a certain amount of heat distortion during the welding process. Of course, after welding, each frame is straightened, precisely measured and the final alignment ensured. Instead of forcing the frame into alignment, the RADO can be precisely fixed in place with guided grooves and the choice of 5 different camber heights.

After locating the correct toe position along the guided grooves, the frame is drilled and the RADO is pinned by a dowel. The chosen RADO for each frame has the correct camber dimension milled into the RADO. This means that the original alignment is retained when the dropout needs replacing.

Thanks to our own powder coating facility, local anodisers, and our in-house production line, every NICOLAI frame can be customized to meet your individual needs. We process over 50 powder coat colors applied in high-gloss or semi-gloss finish, as well as fades and our classic ‘camo’ options. Customers can even choose a separate color for each welded frame component. Our frames can also be anodized with a glass-peened and durable black, bronze or titanium finish. For turned or milled components such as rocker linkages, bearing covers, or cable guides, we offer an extended ‘Extra Love’ range of anodized colors that allow color matching with your favorite branded components. We also offer an uncoated aluminum finish as "factory raw". To finish, add your choice of decal style, location, size and color to guarantee a unique, personalized and truly custom bike.

All NICOLAI frame models come with a 5-year warranty against breakage and material failure, even when used in extreme conditions like racing or jumping. The prerequisites are that the respective models are used within the scope of their designated purpose and have only been equipped with approved components. In addition, we guarantee supply of spare parts for all models for at least 10 years. Since we manufacture all frame components ourselves on our own machines, it is even possible to reproduce sold-out spare parts beyond the 10-year period in certain cases.