Endorphin

  • 29/27.5 | 27.5
  • 140 | 160
  • 135 | 150

Endorphin

$4,499.00 USD Sale Save
The Endorphin is our first model that sets the tone for our 6th Generation of bike models to be released in the next year. With a straight top tube design, Enduro bearings on all pivots, and a one-piece link driving the shock, this launch features massive updates, with over 80% of the bike being changed from the outgoing generation.
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Complete bikes ship unassembled & require a full build. Spec is subject to change without notice. *Dual 27.5 custom spec shown not to spec*. If you have any questions, contact us at info@knollybikes.com.

Sizing

XS (S1)150cm - 160cm
S (S2)160cm - 170cm
M (S3)170cm - 180cm
L (S4)180cm - 188cm

Geometry

Endorphin MX29

140/135mm

S1 - X-SmallS2 - SmallS3 - MediumS4 - Large
Head tube length115mm125mm135mm145mm
Effective top tube length562mm589mm616mm643mm
Actual top tube length562mm585mm608mm632mm
Seat tube length335mm350mm390mm440mm
Seat tube max insertion depth260mm280mm315mm360mm
Theoretical saddle height (from BB axis)650mm700mm750mm800mm
Seat tube angle (actual)67.5º68.5º69.5º70.5º
Stand over height691mm701mm716mm728mm
Wheelbase length1173mm1202mm1236mm1268mm
Chainstay length428mm428mm432mm436mm
Stack601mm611mm620mm629mm
Reach415mm440mm465mm490mm
NeutralSlack
Head angle64.5º64.0º
Effective seat tube angle76.0º75.5º
BB height345.5mm335.5mm
BB drop7.5mm7.5mm

Endorphin 27.5

160/150mm

S1 - X-SmallS2 - SmallS3 - MediumS4 - Large
Head tube length 115mm125mm135mm145mm
Seat tube length335mm350mm390mm440mm
Effective top tube length562mm589mm616mm643mm
Actual top tube length562mm585mm608mm632mm
Seat tube max insertion depth260mm280mm315mm360mm
Theoretical saddle height (from BB axis)650mm700mm750mm800mm
Seat tube angle (actual)68º69º70º71º
Stand over height688mm698mm713mm725mm
Wheelbase length1169mm1198mm1232mm1264mm
Chainstay length428mm428mm432mm436mm
Stack598mm607mm616mm621mm
Reach419mm444mm469mm494mm
NeutralSlack
Head angle65.0º64.5º
Effective seat tube angle76.5º76.0º
BB height343.5mm333.5mm
BB drop7.5mm7.5mm

Specs

Fork A/C length558mm (29" inc. headset) or 562mm (27.5" inc. headset)
Front travel29" 140mm or 27.5" 160mm
Rear travel135mm or 150mm
Wheel size and max width27.5" x 3.0"
Dropout/Hub spec12 x 157mm
Shock hardwareM8x30mm lower
Seat post diameter31.6mm
Seat post inner depth300mm+
Dropper post rangeSize XS: 175mm-200mm drop; Size Small, Medium & Large: 200mm+ drop
Headset44mm upper & 56mm lower
Post collar35mm
Frame material6066 Aluminum, Custom Titanium Hardware
Cable routingInternal with Di2 battery compartment
Chainguide mountISCG05
BB shell spec73mm / threaded
Chainline54-57 with 55-56mm optimal
Rear brake tabsPost mount 180mm
Geo settingsSlack or Neutral
Bottle mountsYes
Tool mountsYes

Build kits

Deore 27.5Deore MX29GX MX29XT MX29
ForkMarzocchi Z1 27.5” 160mm, 44mm OffsetFox 34 Performance 29" 140mm, 51mm OffsetFox 34 Performance 29" 140mm, 51mm OffsetFox 34 Factory Grip2 29" 140mm, 51mm Offset
Rear ShockMarzocchi Bomber Air 185x55Fox Float X Performance 185x50Fox Float X Performance 185x50Fox Float X Factory 185x50
HeadsetFSA Orbit ZS44/56FSA Orbit ZS44/56FSA Orbit ZS44/56Cane Creek 40 ZS44/56
StemRaceFace Aeffect R 35mm x 40mmRaceFace Aeffect R 35mm x 50mmRaceFace Aeffect R 35mm x 50mmRaceFace Aeffect R 35mm x 50mm
HandlebarRaceFace Aeffect R 35x780mm, 20mm RiseRaceFace Aeffect R 35x780mm, 20mm RiseSpank Oozy 35mm x 800mmSpank Oozy 35mm x 800mm
GripsSpank SpoonSpank SpoonSpank SpoonSpank Spoon
BrakeShimano Deore 4 Piston M6120Shimano Deore 4 Piston M6120Magura MT5Shimano XT 4 Piston M8120
RotorsShimano SLX 203mm / 180mm (6-Bolt) SM-RT66Shimano SLX 203mm / 180mm (6-Bolt) SM-RT66Magura Storm HC 203mm / 180mmShimano XT 203mm / 180mm (6-Bolt) SM-RT76
ShifterShimano Deore 12spd M6100 (I-Spec EV)Shimano Deore 12spd M6100 (I-Spec EV)SRAM GX EagleShimano XT 12spd M8100 (I-Spec EV)
Seat postSDG Tellis 170mm, 31.6SDG Tellis 170mm, 31.6SDG Tellis 170mm, 31.6SDG Tellis 170mm, 31.6
Seat collarKnollyKnollyKnollyKnolly
SaddleSDG Bel-Air V3SDG Bel-Air V3SDG Bel-Air V3SDG Bel-Air V3
CranksetShimano Deore M6130 30T, 170mmShimano Deore M6130 30T, 170mmSRAM Descendent 7k 30T RingShimano XT M8130 30T, 170mm
Bottom BracketShimano MT501 BSAShimano MT501 BSASRAM DUB BSA SB+Shimano MT800 BSA
CassetteShimano Deore M6100 12spd, 10-51T, Hyperglide+Shimano Deore M6100 12spd, 10-51T, Hyperglide+SRAM PG1175 Eagle 10-52TShimano XT M8100 12spd, 10-51T, Hyperglide+
ChainShimano Deore M6100Shimano Deore M6100SRAM NX EagleShimano XT M8100
WheelsetDT Swiss M1900 SPLINE 28h Straight-Pull (MS) 27.5"DT Swiss M1900 SPLINE 28h Straight-Pull (MS) 29/27.5" RaceFace Aeffect R 30 Trace 28h J-Bend (XD) 29/27.5"DT Swiss M1900 SPLINE 28h Straight-Pull (MS) 29/27.5"
Front TireMaxxis Assegai 27.5" 2.5WT 3C MaxxGrip EXO+Maxxis Assegai 29" 2.5WT 3C MaxxGrip EXO+Maxxis Assegai 29" 2.5WT 3C MaxxGrip EXO+Maxxis Assegai 29" 2.5WT 3C MaxxGrip EXO+
Rear TireMaxxis DHR2 27.5" 2.4" 3C MaxxTerra EXO+Maxxis DHR2 27.5" 2.4" 3C MaxxTerra EXO+Maxxis DHR2 27.5" 2.4" 3C MaxxTerra EXO+Maxxis DHR2 27.5" 2.4" 3C MaxxTerra EXO+

New Aesthetic

We developed a new frame design that profiles a straight top tube, that not only improves standover clearance but also delivers a fresh modern style.

Flexible Options

Riders can fine tune their fit and preference, with a choice between Dual 27.5 or MX options. Plus there’s multiple build kit options to fit your budget & riding needs.

Expanded Size Range

Designed for fun-sized people ranging in height from 4’11-5’10. It suits riders with smaller inseams, with a new x-small option.

SRAM UDH Compatible

This model features new 157Trail dropouts that are SRAM UDH and transmission compatible. In addition we’ve included a Knolly custom full metal UDH hanger. 

Learn More About 157Trail

Unified Monoblock Rocker Link

Working in collaboration with the lower swing link, this new design provides increased rigidity and it lessens lateral stresses on the shock mount.

PM180

The rear brake mount has been updated to Post Mount 180mm. It’s optimized for bigger rotors with more streamlined adapter hardware.

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