With the launch of the G1, the Nicolai-specific, progressive Geolution frame design underwent a thorough revision. The result is a true, size-dependent geometry with comprehensive adjustability for individual optimization. The G1 GPI is best described as a superenduro, an adaptive gravity platform that accommodates a variety of riding styles and scenarios for hard and fast riding. The G1 GPI is just as at home on the enduro race track as it is on the downhill track and cuts just as good a figure on the jumpline in the bike park as it does on all-day alpine adventures.

The downhill-heavy geometry with a 63-degree head angle (size M) and a choice of 162 or 175 millimetres of rear travel, which can be adjusted using two optional mounting points for the shock on the rocker arm, ensures optimum riding characteristics. Suspension forks with 170 or 180 millimetres of travel can be used at the front. The G1 GPI is also flexible when it comes to wheel sizes: depending on your preference, it can be ridden as a 29er, 27.5er or mixed wheel size. The geometry is adapted using interchangeable adapters at the bearing points of the rear triangle, so-called mutators.

The integration of a Pinion gearbox gives the G1 GPI decisive advantages over the derailleur version. With a spread of 600 percent and constant gear steps of 17.7 percent, the Pinion C1.12i clearly outperforms conventional 12-speed derailleur systems with 500 to 520 percent in terms of overall gear ratio. All moving parts of the drivetrain are integrated in a robust, sealed housing and fully protected against environmental influences and damage. The combination of Pinion gearbox and Carbon Drive drivetrain also reduces noise, meaning that the G1 GPI is always in stealth mode.

The geometry of the G1 GPI is based on Nicolai's specific Geolution concept. A slacker head angle, longer reach and the associated longer wheelbase make the mountain bike faster, smoother and safer. The steep seat angle ensures a central and comfortable riding position, which improves the control and handling of the bike. The proportional geometry ensures consistent weight distribution, handling and bike response across all frame sizes.

The seat stay and chain stay lengths of the G1 GPI can be changed by fitting adapters of different lengths, called mutators. This makes it possible to adjust the riding characteristics in terms of center of gravity, handling, maneuverability and smoothness. The mutators integrate the bearing seal and bearing axle, thus reducing the number of components at the bearing points.

The G1 GPI uses a ZS56 head tube, which ensures a large selection of compatible headsets. At the rear, a 148 x 12 millimeter thru-axle provides additional stiffness and quick rear wheel removal. Cables and lines are routed on the outside of the frame as standard and securely fastened with screw mounts. Internal routing of the brake line is possible at the customer's request.

The four-bar rear suspension of the G1 GPI, designed according to the Horst link principle, has a constant progression over the entire suspension travel. This ensures a sensitive response to small bumps for maximum grip and traction. The anti-squat value is 30 percent Sag constant at 115 percent, which enables efficient climbing and loss-free acceleration. The anti-rise value is 70 percent at 30 percent sag, which means that the suspension remains active and provides traction even when decelerating.

The G1 GPI is offered as a complete bike with high-quality 8.0 equipment, but is also available as a frame kit. The basic configuration is designed for electronic shifting and the Pinion Smart.Shift system. The 8.0 version of the G1 GPI comes with a high-performance component mix that is ideal for the entire gravity range of applications. The Fox 38 Factory suspension fork with 170 millimetres of travel, the Magura MT7 Pro HC brakes and the DT Swiss E1900 Spline wheelset are just some of the highlights that make the G1 GPI a true gravity all-rounder.

G1 GPI - Nicolai Engineering Features

• Geolution 2.0: Progressive, size-proportional gravity and enduro geometry
• Mutators: Mounted, interchangeable rear adapters for adjusting geometry, wheel size and shock length
• Gates Carbon Drive: Carbon fiber-reinforced belt drive: clean, quiet, robust, durable, low-maintenance
• Topology optimization: Computer-aided design to optimize durability, function and weight
• HMT - Hollow Milled Tech: Hollow milled CNC components that combine maximum durability with minimum weight
• Thru Axle 148x12 Boost: Boos standard rear thru axle for direct, loss-free power transmission and a precise, true-to-track ride
• Horst-Link: Drive-optimized and brake-neutral four-bar rear triangle
• Insert Bearings: quadruple-sealed full-ball ENDURO deep groove and angular contact ball bearings
• Extra Love: powder and anodized colors, decors, customizing, individualization
• 5 frame sizes: proportional geometry and load-dependent modification
• 7020 T6 aluminium: Sustainable and durable, the stuff dreams are made of
• Nicolai Schweisstechnik: Craftsmanship and engineering to perfection
• Manufacturing quality: Made in Germany
• Warranty and spare parts supply: 5-year warranty against breakages and material failure, even in racing use - min. 10-year spare parts supply

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