GEOMETRON
G15

Enduro

145mm

29"

Designed for aggressive trail riding "capable yet composed"

The G15 is the big brother of the familiar G13 and comes equipped with 145mm of rear travel, fast-rolling 29er wheels, and a 64.5-degree head angle. The G15 can perform exceptionally well whether the degrees of the mountains are set in the positives or negatives, it gives you the extra bit of confidence sometimes needed to let off the brakes and attack rough terrain.

All “G” models have been completely redesigned including a new swingarm and BOOST dropouts which are lighter and stiffer. Likewise, the suspension response has been fine-tuned with the use of quadruple sealed ball bearings. Sealed for the applause of the people taking the ION-G15 on wet and muddy winter rides. The proven NICOLAI shock lever has been pushed through many FEM strength calculations in order to reduce the weight while keeping the same rigidity. Although our 5-axis CNC machine now runs a little longer, as a reward it’s lighter.

EXT STORIA LOK

THE ADVANTAGE OF COIL SPRING SHOCK WITH THE LIGHTNESS OF AIR

The EXT Storia Lok was the first mountain bike coil shock to have a 2 way lock-out system, the Storia provides the best performance and comfort on uphills or transitions, without any bobbing. The LOK technology is different to any other lock-out systems as it has a completely independent valve to control the oil flow, it is possible to have firm lock-out and maximum grip when you need it to climb rocky uphills trails. Then when you want to ride down the hardest trails you have full grip but also a smoother and more comfortable shock. This equates to the most efficient lock-out system enabling you to transfer all your strength to the bike. The LOK system has a special blow-off valve, so if you forget switch before a downhill section you can ride it out. The Storia Lok is the lightest enduro mountain bike coil shock available, weighing in at only 635 grams including spring (196×57 version with a 325 lbs spring)

Lower. Slacker. Faster.

145mm of rear travel, fast-rolling 29er wheels, and a 64.5-degree head angle.

Due to the steep seat angle and the long chain stays, coupled with the efficient kinematics, the G15 climbs excellently! Steep and technical climbs can be mastered noticeably easier and relaxed. That’s why you can build the G15 as an enduro race machine, as well as a long-hauled touring / trail bike. Depending on your preference and trail, the ET-Key offers additional geometry fine tuning, depending on whether in the high or low position with a steeper or shallower steering and seat angle of 0.7 ° and a bottom bracket 8 mm higher / lower.

Your Build

G15 Specifications

Get in touch with your spec of choice and we'll go from there

Frame Only
£2,300

Frameset

Frame

GEOMETRON G15

Headset

HOPE TAPERED HEADSET INTEGRAL – ZS44 / ZS56

Rear Axle

NICOLAI THRU AXLE (BOOST 148MMX12MM) 17MM HEX
Frame & Shock
£2,950

Frameset

Frame

GEOMETRON G15

Headset

HOPE TAPERED HEADSET INTEGRAL – ZS44 / ZS56

Seat Clamp

HOPE SEAT CLAMP BOLT Ø34,9MM

Rear Axle

NICOLAI THRU AXLE (BOOST 148MMX12MM) 17MM HEX

Suspension

Shock

EXT STORIA LOK 215MM
Frame, Shock & Fork
£3,650

Frameset

Frame

GEOMETRON G15

Headset

HOPE TAPERED HEADSET INTEGRAL – ZS44 / ZS56

Seat Clamp

HOPE SEAT CLAMP BOLT Ø34,9MM

Rear Axle

NICOLAI THRU AXLE (BOOST 148MMX12MM) 17MM HEX

Suspension

Shock

EXT STORIA LOK 215MM

Fork

ROCK SHOX LYRIK RC2 160MM 29″, BOOST™ 15X110
Frame, Shock, Fork & Post
£3,850

Frameset

Frame

GEOMETRON G15

Headset

HOPE TAPERED HEADSET INTEGRAL – ZS44 / ZS56

Rear Axle

NICOLAI THRU AXLE (BOOST 148MMX12MM) 17MM HEX

Seat Clamp

HOPE SEAT CLAMP BOLT Ø34,9MM

Suspension

Shock

EXT STORIA LOK 215MM

Fork

ROCK SHOX LYRIK RC2 160MM 29″, BOOST™ 15X110

Cockpit

Seatpost

BIKEYOKE REVIVE 160MM OR 185MM
XT Build
£5,400

Frameset

Frame

GEOMETRON G15

Headset

HOPE TAPERED HEADSET INTEGRAL -ZS44 / ZS56

Seat Clamp

HOPE SEAT CLAMP BOLT Ø34,9MM

Rear Axle

NICOLAI THRU AXLE (BOOST 148MMX12MM) 17MM HEX

Suspension

Shock

EXT STORIA LOK 215MM

Fork

ROCK SHOX LYRIK RC2 160MM 29″, BOOST™ 15X110

Cockpit

Seatpost

BIKEYOKE REVIVE 160/185MM

Saddle

WTB VOLT

Stem

HOPE AM STEM 0 DEG 35MM DIA

Handlebar

RENTHAL FATBAR35 20MM RISE 800MM WIDE

Grips

RENTHAL TRACTION LOCK-ON ULTRATACKY

Drivetrain

Chain

SHIMANO M8000 XT CN-HG700-11

Bottom Bracket

HOPE STAINLESS 83MM – 30MM

Crankset

HOPE CRANKSET 83MM SINGLE SPIDER 170MM

Shifters

SHIMANO XT M8000 L-M8000-R

Cassette

SHIMANO M8000 XT 11-46T (11-13-15-17-19-21-24-28-32-37-46T)

Chainring

HOPE 32T SPIDERLESS RETAINER RING.

Derailleur Rear

SHIMANO M8000 SHADOW XT-GS

Wheels & Tyres

Front Tyre

MAXXIS DHF 29×2.50

Rear Tyre

MAXXIS MINION DHR II 29×2.30

Wheelset

HOPE PRO4 ENDURO / 15×110 / 12×148

Brakes

Brakes

HOPE TECH 3 E4

Discs

FLOATING 200MM/183MM
XTR Build
£5,600

Frameset

Frame

GEOMETRON G15

Headset

HOPE TAPERED HEADSET INTEGRAL -ZS44 / ZS56

Seat Clamp

HOPE SEAT CLAMP BOLT Ø34,9MM

Rear Axle

NICOLAI THRU AXLE (BOOST 148MMX12MM) 17MM HEX

Suspension

Shock

EXT STORIA LOK 215MM

Fork

ROCK SHOX LYRIK RC2 160MM 29″, BOOST™ 15X110

Cockpit

Seatpost

BIKEYOKE REVIVE 160/185MM

Saddle

WTB VOLT

Stem

HOPE AM STEM 0 DEG 35MM DIA

Handlebar

RENTHAL FATBAR35 20MM RISE 800MM WIDE

Grips

RENTHAL TRACTION LOCK-ON ULTRATACKY

Drivetrain

Chain

SRAM XX1 HOLLOW PIN 11 SPEED CHAIN SILVER 118 link

Bottom Bracket

HOPE STAINLESS 83MM – 30MM

Crankset

HOPE CRANKSET 83MM SINGLE SPIDER 170MM

Shifters

SHIMANO XTR –M9000-R

Cassette

SRAM XX1 XG1199 (10/12/14/16/18/21/24/28/32/36/42)

Chainring

HOPE SLICK GUIDE SHORTY – ISCG05

Derailleur Rear

SHIMANO XTR M9000 SHADOW -GS

Wheels & Tyres

Front Tyre

MAXXIS DHF 29×2.50

Rear Tyre

MAXXIS MINION DHR II 29×2.30

Wheelset

HOPE PRO4 ENDURO / 15×110 / 12×148

Brakes

Brakes

HOPE TECH 3 E4

Discs

FLOATING 200MM/183MM
X01 Eagle Build
£5,400

Frameset

Frame

GEOMETRON G15

Headset

HOPE TAPERED HEADSET INTEGRAL -ZS44 / ZS56

Seat Clamp

HOPE SEAT CLAMP BOLT Ø34,9MM

Rear Axle

NICOLAI THRU AXLE (BOOST 148MMX12MM) 17MM HEX

Suspension

Shock

EXT STORIA LOK 215MM

Fork

ROCK SHOX LYRIK RC2 160MM 29″, BOOST™ 15X110

Cockpit

Seatpost

BIKEYOKE REVIVE 160/185MM

Saddle

WTB VOLT

Stem

HOPE AM STEM 0 DEG 35MM DIA

Handlebar

RENTHAL FATBAR35 20MM RISE 800MM WIDE

Grips

RENTHAL TRACTION LOCK-ON ULTRATACKY

Drivetrain

Chain

SRAM X01 EAGLE HOLLOWPIN 126 LINKS 12 SPEED

Bottom Bracket

HOPE STAINLESS 83MM – 30MM

Crankset

HOPE CRANKSET 83MM SINGLE SPIDER 170MM

Shifters

X01 EAGLE TRIGGER 12 SPEED W DISCRETE CLAMP

Cassette

SRAM CASSETTE X01 EAGLE XG-1295 10-50 12 SPEED

Chainring

HOPE 32T SPIDERLESS RETAINER RING.

Derailleur Rear

SRAM REAR DERAILLEUR X01 EAGLE TYPE 3 12 SPEED

Wheels & Tyres

Front Tyre

MAXXIS DHF 29×2.50

Rear Tyre

MAXXIS MINION DHR II 29×2.30

Wheelset

HOPE PRO4 ENDURO / 15×110 / 12×148

Brakes

Brakes

HOPE TECH 3 E4

Discs

FLOATING 200MM/183MM
XX1 Eagle Build
£5,700

Frameset

Frame

GEOMETRON G15

Headset

HOPE SEAT CLAMP BOLT Ø34,9MM

Seat Clamp

HOPE SEAT CLAMP BOLT Ø34,9MM

Rear Axle

NICOLAI THRU AXLE (BOOST 148MMX12MM) 17MM HEX

Suspension

Shock

EXT STORIA LOK 215MM

Fork

ROCK SHOX LYRIK RC2 160MM 29″, BOOST™ 15X110

Cockpit

Seatpost

BIKEYOKE REVIVE 160/185MM

Saddle

WTB VOLT

Stem

HOPE AM STEM 0 DEG 35MM DIA

Handlebar

RENTHAL FATBAR35 20MM RISE 800MM WIDE

Grips

RENTHAL TRACTION LOCK-ON ULTRATACKY

Drivetrain

Chain

SRAM XX1 EAGLE HOLLOWPIN 126 LINKS 12 SPEED

Bottom Bracket

HOPE STAINLESS 83MM – 30MM

Crankset

HOPE CRANKSET 83MM SINGLE SPIDER 170MM

Shifters

X01 EAGLE TRIGGER 12 SPEED W DISCRETE CLAMP

Cassette

XX1 EAGLE XG-1299 10-50 12 SPEED GOLD,12SPD 10-50T

Chainring

HOPE 32T SPIDERLESS RETAINER RING.

Derailleur Rear

SRAM REAR DERAILLEUR X01 EAGLE TYPE 3 12 SPEED

Wheels & Tyres

Front Tyre

MAXXIS DHF 29×2.50

Rear Tyre

MAXXIS MINION DHR II 29×2.30

Wheelset

HOPE PRO4 ENDURO / 15×110 / 12×148

Brakes

Brakes

HOPE TECH 3 E4

Discs

FLOATING 200MM/183MM

Measurements

Scroll right to view all sizes

Letter	Location	Small	Medium	Large	Extra Large
C	Seat Tube Length	420mm	450mm	470mm	500mm
D	Seat Tube Angle	76°/77.2°	76°/77.2°	76°/77.2°	76°/77.2°
E	Head Tube Length	110mm	110mm	120mm	130mm
F	Head Tube Angle	64.5°	64.5°	64.5°	64.5°
G	Reach	460mm	490mm	515mm	535mm
H	Stack	618mm	618mm	627mm	637mm
I	Chainstay Length	445mm	445mm	445mm	445mm
J	Fork Offset	51mm	51mm	51mm	51mm
K	Standover	716mm	744mm	763mm	791mm
L	Wheelbase	1251mm	1280mm	1310mm	1341mm

CHAIN STAY MUTATOR

Adjustability is key

Chain stay length is adjustable via the rearmost mutator, available in differing lengths (33mm, 41mm and 47mm). No need to worry about creaks or servicing issues as the inner and outer chain stay mutator shells are positively connected via a wedge-shaped rectangular structure within the rocker. Twisting is prevented via thoughtful design. The mutators aren’t a one trick pony, they also function as the bearing axis – we spec readily available and cheap 6001 2RS bearings.

7020-T6

ALUMINIUM ALUMINIUM IS NOT ALUMINIUM!

We exclusively use 7020-T6 alloy (AlZn4,5Mg1) for our frames. Compared to our competitors, who mostly use aluminium 6061-T6, the tensile strength of 7020 compared to 6061 aluminium is about one third higher. The elasticity is about one fifth higher. These properties, coupled with high quality welding, result in a bicycle frame that is far superior to the average in terms of durability. In comparison to carbon, aluminium is much more robust and tough, so that bottom contact, falls or stone impacts cannot harm the structure.

ET KEY

THE RIGHT SETTING FOR EVERY TRAIL

With the ET-Key, the range of application of the frame can be adjusted in a few easy steps. The ET-KEY changes the kinematically active length of the compression strut. With the models ION-G13, ION-G15 you can adjust the steering angle and the bottom bracket height, e.g. for a visit to the bike park or a steeper trail.

ALWAYS RECOGNISABLE BY ITS WELDS

Our evenly flat scaled welds are produced by a very slow welding speed.

The wide, flat shape of the seam ensures optimum force dissipation in the area of the weld. Welded in several passes by TIG (tungsten inert gas) in order to minimize distortion. Very large loads, such as those caused by jumping or braking, are absorbed by so-called “casting sets”, which are additionally welded onto the frame. For you as a customer, this creates a long-lasting product that can offer many years of fun even under the toughest conditions in racing.

ANGULAR CONTACT BEARINGS

4 WAY SEALED

The rear triangle of a full suspension bike is not a statically rigid component and is exposed to extreme loads during riding. We spec full complement, double-sealed ball bearings as they have a higher load rating than standard ball bearings, as a higher number of balls are used in these bearings – in summary, they are more robust. These are then further protected by two additional O-ring seals located on the pre-load caps. Thus, the bearings are optimally protected against moisture and dirt.

RADO

REAR ALIGNING DROPOUT

The right side dropout (gear hanger) allows us to reduce the rectification work on the frame which also means less stress on the material. The hanger is marked with the indices -1 -2 0 +1 +2 for different toe and camber adjustments.