Nicolai G1-29 29" Frame

The G1-29 Frame by Nicolai for a versatile 29" full suspension bike

The G1-29 frame from Nicolai is a versatile basis for a fast, durable enduro bike that also has its strengths in all-mountain or downhill use. By adjusting the headset and mutators, the frame can be ridden with 27.5" or 29" wheels - mutators for 29" are already pre-installed here. Mutators are screw-in elements that provide fine adjustment and stability at various points on the frame. The 7020-T6 aluminium used for the frame shines with high strength. The thicker down tube and lower top tube give you good legroom, while the round tube design creates a purist look. The GEOLUTION geometry concept delivers traction, safety and speed for unparalleled riding performance. Careful weld work makes the frame particularly robust and creates the signature Nicolai weld seams.

Specifications:

Application:

Enduro, All Mountain, Downhill

Wheel Size:

29"

Travel:

162 mm, 175 mm

Size:

S, M, L, XL, XXL

Front Triangle Material:

aluminium (7020-T6)

Rear Triangle Material:

aluminium (7020-T6)

Linkage Design:

Horst link

Technical Information:

Wheel Standard:

12 x 148 mm (Boost)

Axle Type:

12 mm thru-axle

Seatpost (Ø):

30.9 mm

Seatpost Clamp(Ø):

34.9 mm

Headset:

ZS44/28.6 - ZS56/40 (top to bottom)

Steerer tube rec.:

1 1/8" - 1.5" tapered

Recommended Fork Axle to Crown:

567 mm

Recommended Fork Travel:

150 - 170 mm

Bottom Bracket Standard:

BSA

Shell Width:

73 mm

Chainstay Guide:

ISCG 05

Brake Mount:

disc PM7 (direct mount 180 mm)

Rear Shock Eye-to-Eye Measurement:

230 mm

Rear Shock Stroke:

65 mm

Rear Shock Bushing Width:

20 x 8 mm / 20 x 8 mm

Bottle Cage Mounts:

none

Approved For:

Rotor Size (max.):

220 mm

Tyre Size (max.):

29 x 2.5"

Chainrings:

1x

Fork Axle to Crown Size (max.):

592 mm

Note from the manufacturer:

The frame is approved for use with forks with a maximum of 40 mm stanchion tube diameter.

Features:

• mutator pre-installed for 29" , but frame can also be ridden with 27.5" wheels (special headset required)
• vertical travel adjustable between 162 mm (upper position in the bell crank) and 175 mm (lower position in the bell crank)
• one-piece CNC-machined bell crank
• double sealed ball bearing
• thorough and deep welding
• sophisticated GEOLUTION geometry
• internal cable guide for seatpost
• optimised for 44 mm fork offset
• headset minimum offset below 9 mm
• made in Germany

Technology:

GEOLUTION
GEOLUTION is the geometric concept on which all current Nicolai models are based. It was developed by Nicolai and Chris Porter. The concept is based on the knowledge that a longer wheelbase, a flatter head tube angle and a steeper seat tube angle make the bike faster, smoother, safer and more ready to climb. The GEOLUTION concept combines perfect handling with optimal climbing behaviour.
The rider is integrated into the bike by the long reach, the steep seat tube angle and the long wheelbase, so that the centre of gravity is optimally located between the front and rear wheel axle. All GEOMETRON models are ridden with short stems so that the rider has a relaxed, sporty seated position despite the long top tube. This complicated subject can be simplified to 4 advantages, which offer both professionals and beginners a clear added value: best climbing ability (front does not climb), no roll-over feeling downhill, the rider sits and stands integrated in the wheel (more control), higher cornering speed (more grip on the front wheel).

Pressure Strut Mutator
With the help of the compression strut mutator, Nicolai can finely adjust the bottom bracket height and the head tube angle. Mutators are available in the lengths 3.5, 6.5, 10, 12 and 15 mm. This technology enables Nicolai to realise different strut lengths. The added value can be explained as thus: it is possible to mount different wheel sizes on a single G1 frame. It is also possible to realise different rear triangle lengths on different frame sizes. In this way, the advantages of the GEOLUTION technology come into full effect. The compression strut mutators are installed at the factory in the correct length depending on both frame size and wheel size. Modifications should only be made by a specialist.

Swingarm Mutator
The swingarm mutator is also a component on the rear swingarm developed by Nicolai, which combines many functions in just one component: mutators are available in different lengths (33, 41 and 47 mm). In this way, only by exchanging a mutator, the length of the swingarm can " grow" with the frame height according to the GEOLUTION concept. The inner and outer mutator shell is connected to the swing arm by a wedge-shaped rectangular structure, thus totally preventing twisting or play. Mutator components act simultaneously as both seal carrier and bearing axle. This minimizes the number of components and thus the number of component error.

7020-T6 aluminium
Not all aluminium is the same! Nicolai only uses a 7020-T6 (AlZn4.5Mg1) alloy for frames. Compared to 6061-T6 aluminium, this grade offers much better strength. The tensile strength of 7020 compared to 6061 aluminium is about one-third higher. The elastic limit is about one-fifth higher. These characteristics, combined with high-quality welding, result in a bicycle frame that is far superior in terms of durability. Compared to carbon, aluminium is much tougher, so that hitting, falling or stone chipping does not damage the structure.

RADO
To make sure you hit every lane on the trail, Nicolai mounts a form-fitting, exchangeable drop-out on all frames for adjusting the toe and camber. Due to the distinctly milled right dropouts for adjusting the camber, the rear only needs to be slightly readjusted after installation, which eases the strain on the material. The respective camber height is milled into the RADO with numbers 0, 1, 2 or -1 and -2. After the toe and camber have been adjusted, the RADO is fixed with a pin at the factory. This means that the original setting can be easily reproduced when replacing it. This is the only way the manufacturer can guarantee that Nicolai products operate precisely on tracks.

Geometry:

(based on a fork axle to crown length of 567 mm)
S:

Recommended Height:

164 cm - 172 cm

Stack:

615 mm

Reach:

470 mm

Seat Tube Length:

415 mm

Top Tube Length:

600 mm

Head Tube Length:

110 mm

Chainstay Length:

453 mm

Wheelbase:

1277 mm

BB Drop:

32 mm

Seat Tube Angle:

78°

Head Tube Angle:

62.5°

Standover Height:

728 mm

Seat tube protrusion:

40 mm

M:

Recommended Height:

170 cm - 180 cm

Stack:

624 mm

Reach:

495 mm

Seat Tube Length:

438 mm

Top Tube Length:

622 mm

Head Tube Length:

120 mm

Chainstay Length:

453 mm

Wheelbase:

1306 mm

BB Drop:

32 mm

Seat Tube Angle:

78.5°

Head Tube Angle:

62.5°

Standover Height:

728 mm

Seat tube protrusion:

70 mm

L:

Recommended Height:

178 cm - 190 cm

Stack:

633 mm

Reach:

515 mm

Seat Tube Length:

455 mm

Top Tube Length:

642 mm

Head Tube Length:

130 mm

Chainstay Length:

453 mm

Wheelbase:

1324 mm

BB Drop:

32 mm

Seat Tube Angle:

78.75°

Head Tube Angle:

62.5°

Standover Height:

728 mm

Seat tube protrusion:

85 mm

XL:

Recommended Height:

188 cm - 200 cm

Stack:

642 mm

Reach:

535 mm

Seat Tube Length:

475 mm

Top Tube Length:

659 mm

Head Tube Length:

140 mm

Chainstay Length:

453 mm

Wheelbase:

1347 mm

BB Drop:

32 mm

Seat Tube Angle:

79°

Head Tube Angle:

62.5°

Standover Height:

748 mm

Seat tube protrusion:

85 mm

XXL:

Recommended Height:

198 cm - 205 cm

Stack:

649 mm

Reach:

555 mm

Seat Tube Length:

500 mm

Top Tube Length:

681 mm

Head Tube Length:

150 mm

Chainstay Length:

458 mm

Wheelbase:

1371 mm

BB Drop:

32 mm

Seat Tube Angle:

79°

Head Tube Angle:

62.5°

Standover Height:

770 mm

Seat tube protrusion:

85 mm

Models:

Custom Colours:
This product is a custom frameset, the sales prices are base prices. For individual advice on the selection options of colour, frame size and details, customised variants as well as further questions about Nicolai please contact our service team.
Since every Nicolai frame is made to your specifications, it is included in the Nicolai production plan. Depending on colour, special customisations and model, production time can range anywhere from 2 to 12 weeks. You will receive more detailed information about your desired model on customisation request from our customer service team.

factory raw:
The " factory raw" option gives you a frame in the desired size in an uncoated aluminium finish.

Contents:

• 1 x Nicolai G1-29 frame
• 1 x Nicolai thru-axle
• 1 x Nicolai spare derailleur hanger
• 2 x cross threaded bolts for brake mounting
• 1 x cable guide clips
• 1 x zip ties
• 1 x polishing fleece (only factory raw)