Endorphin 6.1
Complete bikes ship unassembled & require a full build. Spec is subject to change without notice. If you have any questions, contact us at info@knollybikes.com.
Endorphin 6.0
A new take on an old favorite.
Endorphin 6.0
A new take on an old favorite.
Endorphin 6.0
A new take on an old favorite.
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.
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.
Sizing
| XS | 150cm - 162cm |
|---|---|
| S | 162cm - 172cm |
| M | 172cm - 182cm |
| L | 182cm - 188cm |
Geometry
Endorphin MX29
140/135mm
| X-Small | Small | Medium | Large | |
|---|---|---|---|---|
| Head tube length | 115mm | 125mm | 135mm | 145mm |
| Stand over height | 691mm | 701mm | 716mm | 728mm |
| Seat tube length | 335mm | 350mm | 390mm | 440mm |
| Actual top tube length | 562mm | 585mm | 608mm | 632mm |
| Effective top tube length | 562mm | 589mm | 616mm | 643mm |
| Wheelbase length | 1173mm | 1202mm | 1236mm | 1268mm |
| Chainstay length | 428mm | 428mm | 432mm | 436mm |
| Stack | 601mm | 611mm | 620mm | 629mm |
| Reach | 415mm | 440mm | 465mm | 490mm |
| Neutral | Slack | |
|---|---|---|
| Head angle | 64.5º | 64.0º |
| BB height | 343.5mm | 333.5mm |
| BB drop | 7.5mm | 7.5mm |
| Effective seat tube angle | 76.0º | 75.5º |
Endorphin 27.5
160/150mm
| X-Small | Small | Medium | Large | |
|---|---|---|---|---|
| Head tube length | 115mm | 125mm | 135mm | 145mm |
| Stand over height | 688mm | 698mm | 713mm | 725mm |
| Seat tube length | 335mm | 350mm | 390mm | 440mm |
| Actual top tube length | 562mm | 585mm | 608mm | 632mm |
| Effective top tube length | 562mm | 589mm | 616mm | 643mm |
| Wheelbase length | 1169mm | 1198mm | 1232mm | 1264mm |
| Chainstay length | 428mm | 428mm | 432mm | 436mm |
| Stack | 598mm | 607mm | 616mm | 621mm |
| Reach | 419mm | 444mm | 469mm | 494mm |
| Neutral | Slack | |
|---|---|---|
| Head angle | 65.0º | 64.5º |
| BB height | 343.5mm | 333.5mm |
| BB drop | 7.5mm | 7.5mm |
| Effective seat tube angle | 76.5º | 76.0º |
Specs
| Fork length | 558mm (29" inc. headset) or 562mm (27.5" inc. headset) |
|---|---|
| Front travel | 29" 140mm or 27.5" 160mm |
| Rear travel | 135mm or 150mm |
| Wheel size and max width | 27.5" x 3.0" |
| Dropout/Hub spec | 12 x 157mm |
| Shock hardware | M8x30mm lower |
| Seat post diameter | 31.6mm |
| Seat post inner depth | 300mm+ |
| Dropper post range | Size XS: 175mm-200mm drop; Size Small, Medium & Large: 200mm+ drop |
| Headset | 44mm upper & 56mm lower |
| Post collar | 35mm |
| Frame material | 6066 Aluminum, Custom Titanium Hardware |
| Cable routing | Internal with Di2 battery compartment |
| Upper chain guide mount | E-type direct mount (removable) |
| BB shell spec | 73mm / threaded |
| Chainline | 54-57 with 55-56mm optimal |
| Rear brake tabs | Post mount 180mm |
| Geo settings | Slack or Neutral |
| Bottle mounts | Yes |
| Tool mounts | Yes |
Build kits
| Deore 27.5 | Deore MX29 | XT MX29 | |
|---|---|---|---|
| Fork | Marzocchi Z1 27.5” 160mm, 44mm Offset | Fox 34 Performance 29" 140mm, 51mm Offset | Fox 34 Factory 29" 140mm, 51mm Offset |
| Rear Shock | Marzocchi Bomber Air 185x55 | Fox Float X Performance 185x50 | Fox Float X Factory 185x50 |
| Headset | FSA Orbit ZS44/56 | FSA Orbit ZS44/56 | Cane Creek 40 ZS44/56 |
| Stem | RaceFace Aeffect R 35mm x 40mm | RaceFace Aeffect R 35mm x 50mm | Spank Split 35mm x 50mm |
| Handlebar | RaceFace Aeffect R 35x780mm, 20mm Rise | RaceFace Aeffect R 35x780mm, 20mm Rise | Spank Oozy 35mm x 800mm |
| Grips | Spank Spoon | Spank Spoon | Spank Spoon |
| Brake | Shimano Deore 4 Piston M6120 | Shimano Deore 4 Piston M6120 | Shimano XT 4 Piston M8120 |
| Rotors | Shimano SLX 203mm / 180mm (6-Bolt) SM-RT66 | Shimano SLX 203mm / 180mm (6-Bolt) SM-RT66 | Shimano XT 203mm / 180mm (6-Bolt) SM-RT76 |
| Shifter | Shimano Deore 12spd M6100 (I-Spec EV) | Shimano Deore 12spd M6100 (I-Spec EV) | Shimano XT 12spd M8100 (I-Spec EV) |
| Seat post | SDG Tellis 170mm, 31.6 | SDG Tellis 170mm, 31.6 | SDG Tellis 170mm, 31.6 |
| Seat collar | Knolly | Knolly | Knolly |
| Saddle | SDG Bel-Air V3 | SDG Bel-Air V3 | SDG Bel-Air V3 |
| Crankset | Shimano Deore M6130 30T, 170mm | Shimano Deore M6130 30T, 170mm | Shimano XT M8130 30T, 170mm |
| Bottom Bracket | Shimano MT501 BSA | Shimano MT501 BSA | Shimano MT800 BSA |
| Cassette | Shimano Deore M6100 12spd, 10-51T, Hyperglide+ | Shimano Deore M6100 12spd, 10-51T, Hyperglide+ | Shimano XT M8100 12spd, 10-51T, Hyperglide+ |
| Chain | Shimano Deore M6100 | Shimano Deore M6100 | Shimano XT M8100 |
| Wheelset | DT Swiss M1900 SPLINE 28h Straight-Pull (MS) | DT Swiss M1900 SPLINE 28h Straight-Pull (MS) | DT Swiss M1900 SPLINE 28h Straight-Pull (MS) |
| Front Tire | Maxxis Assegai 27.5" 2.5WT 3C MaxxGrip EXO+ | Maxxis Assegai 29" 2.5WT 3C MaxxGrip EXO+ | Maxxis Assegai 29" 2.5WT 3C MaxxGrip EXO+ |
| Rear Tire | Maxxis DHR2 27.5" 2.4" 3C MaxxTerra EXO+ | Maxxis DHR2 29" 2.4" 3C MaxxTerra EXO+ | Maxxis DHR2 29" 2.4" 3C MaxxTerra EXO+ |