from 6999.00€

Soon after we introduced our first GEOLUTION 29, there were the first calls for an even more powerful Big Wheeler. In the ION-G15 we have answered your calls for the 2018 season. With its downhill potential you can really let the gas stand at the Enduro race. But the G15 is also great fun on the trail lap at home – provided that your trails give away what the G15 craves: Adrenaline, technical passages and crisp climbs.  We would even use it for technical alpine cross adventures, because like all our GEOLUTION bikes, the 29er Enduro ION-G15 climbs incredibly calmly even steep and long climbs – no matter whether in transfer to the next enduro stage or to the next alpine pass with the following descent.


It is considered the most potent air damper in the FOX portfolio.

The special feature of Float X2 is the adjustable damping, which is based on a double-tube system, as with Cane Creek. This allows the large oil volume and the oil flow to be controlled very well. In addition to the air pressure, high and low speed compression and traction stages can be set separately.

Fox Racing Shox 36 Float 170mm


The award-winning 36 series offers the right model for every aggressive enduro rider to have great trail fun.

DT Swiss EX 1501 30mm BOOST 27,5"

Unsurpassed weight to strength ratio.

The Enduro version of the SPLINE® ONE line is available with 30 mm rim width. The larger internal width increases the tyre volume with the same tyre width, which improves traction and comfort. The specifically developed surface hardening process allows an unsurpassed ratio of weight to strength and makes the EX 1501 SPLINE® ONE the perfect enduro wheel.

X01 Eagle Boost 170mm

More stable - stiffer - lighter

The X01 Eagle™ crankset was developed for winner types. It is completely revised. With the special CARBON TUNED™ laminate technology. The X01 Eagle™ crank is tough when you’re chasing over rough and tumble on the ideal line. The X01 Eagle™ is the strongest, stiffest and lightest crank on the market. With its new Eagle™ Direct Mount chainrings, it is perfect for taking the podium. Providing you want it.

Sram X01 Eagle

The next level.

The new Eagle™ rear derailleur not only has a larger capacity; it is also the next stage of the proven X-HORIZON™ technology specially developed for 1x circuits. The larger, lower X-SYNC™ shifting roller with 14 teeth ensures sufficient capacity to handle the cassette with sprockets from 10 to 50 teeth. The design of the rear derailleur is nevertheless compact. It also ensures that you always pedal evenly. Its torque curve is even smoother thanks to the new Type-3 ROLLER BEARING CLUTCH™, so that shifting is quieter and “rounder”.

Magura MT7

German Engineering for maximum safety.

The clearly defined pressure point and maximum power make it the first choice of gravity and high-speed pilots. The 1-finger HC brake lever modulates the enormous braking power as desired. The HC brake lever and the pressure point adjustment provide the necessary ergonomics to have the brake perfectly under control even on the heaviest terrain. In hard enduro or downhill use, the additional braking power of 4 pistons offers fine dosing and maximum stability, adapted from Magura motorsport experience. Braking power does not have to be heavy. Carbotecture® SL brake handle and aluminium lever reduce the total weight. The 4-piston brakes are characterised by high thermal stability, which is achieved through optimum weight distribution. Optimum use of material where it is needed.


“We don’t care about trends! All that matters is lap times, driving pleasure, safety and the physical facts.” This quote from Kalle Nicolai describes Nicolai’s approach to the development of new mountain bikes. This mission statement has made NICOLAI one of the most innovative bicycle companies in terms of chassis performance, steering dynamics and geometry.





Fox Racing Shox 36 Float 160 HSC/LSC FIT Factory BOOST 29"

Rear shock

Fox Racing Float X2, Comp-Lever, Factory


DT Swiss EX 1501 30mm 29"

front tire

Continental Der Baron 2.4 Projekt 29" ProTection Apex

rear tire

Continental Mountain King II 2.4 ProTection 29"


Magura MT7, HC Bremshebel

brake discs

203/ 180mm


Sram X01 Eagle Boost, 170mm, 32 T schwarz

Inner bearings

Sram Team BSA GXP

chain guide

Universal Transmission Bio-Bike Chainguide


Sram CN-X-01 Eagle


Sram XG 1295 Eagle 12- fach

Rear derailleur

Sram X01 Eagle, 12- fach


Sram X01 Eagle, 12- fach


Cane Creek Forty


Nicolai MTB 35mm


Renthal Fatbar Carbon 780x20mm Rise


Ergon GE1 Slim, schwarz


Bikeyoke Revive 2.0 160mm


Ergon SMA30 Comp, Stealth

Seatpost clamp

Hope QR


14 kg


100% Handmade

All NICOLAI frames are manufactured in Germany. This is the only way to ensure our high quality standards in the long term.


Test rides can be done anywhere in Germany. Try it!


From the date of purchase you get 5 years warranty. We also ensure a ten-year supply of spare parts.