All About Thru Axles

As a method of securing wheels to frames and forks, thru axles represent a superior concept in theory yet remain muddled in practice due to the inability of the bicycle industry to coalesce around a unified standard. Compared to traditional quick release skewers, thru axles can substantially augment the rigidity of the interface between the hub and the dropouts, while also precisely locating the hub to optimize the alignment between caliper and rotor on disc-equipped bicycles. However, the myriad of extant standards for axle diameter, thread pitch, dropout width, and differing conventions for front versus rear make specification highly complex. Unfortunately, the majority of bicycle manufacturers provide little to no detail on the thru axle standards utilized on their frames, leaving consumers without readily accessible compatibility data. When needing to replace a damaged or lost axle, or upgrade to a higher quality axle, this paucity of information engenders profound frustration. This article aims to elucidate some of the key variables to clarify the landscape.

The Universal Derailleur Hanger (UDH) embodies a significant step toward enhanced innovation and universality in mountain bike components. With its meticulously engineered 12 x 1.0 mm thread pitch to pair with diverse rear suspension topologies and hub spacing conventions, this component enables cross-frame interoperability and seamless integration. The patented design incorporates strategic technical features including a chain retention mechanism for derailleur security, and a rearward-pivoting failure point to safeguard both frame and drivetrain in crashes. Moreover, critical derailleur interface geometries have been harmonized with industry-standard mountain bike derailleurs to guarantee optimized shifting performance. For riders, this equates to simplified replacement and restored drivetrain functionality should damage occur. Rather than proprietary hangers dictating component compatibility, the UDH fit means facile swapping at any bicycle shop.

A Common Misconception:  Despite the ubiquity of the DT Swiss brand on thru axle hardware, do not assume your axle adheres to a DT standard. More likely, your axle was manufactured by DT but designed around a different specification by the bicycle OEM.

The E-thru Conundrum:  Shimano’s “E-Thru” label encompasses several distinct variants with compatibility dependent on dropout width and threading conventions. For example, the standard 142 mm E-Thru axle may function in many 148 mm Boost E-thru frames, while proving too long for some 142 mm E-thru frames requiring shorter hardware. When replacing, precise length measurements from the existing E-Thru axle rather than assumed standards based on hub spacing offer definitive sizing data.

Sizing: Four key attributes determine appropriate thru axle specification:

  • Bolt Head Interface: Flat or conical
  • Total Length: The length of the axle, not including the head.
  • Thread Length: The length of the axle’s threaded portion.
  • Thread pitch: Thread standard used on the axle, expressed as distance between threads in millimeters.

Fits: A list of known compatible forks or frames, by no means comprehensive.
Important Note: Minor variations within standards exist. Generally, any model of the same variant should function correctly barring outliers.

THRU AXLE

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ROAD FRONT 12 / 15 x 100
MTB FRONT 15 x 100 MTB FRONT 15 x 110 BOOST
REAR 12 x 142 REAR 12 x 148 BOOST

FRONT ROAD 12 X 100 MM

FRONT ROAD 12 X 100 MM /15 x 100 MM

FRONT 12 X 1.0 MM

12 X 1.0 (CONICAL)
114 MM
Model Length Thread Length Thread Pitch Interface
Extralite Blacklock 12.5G 114 mm 12.5 mm 12 x 1.0 mm Conical
FITS
  SPECIALIZED  
SW Aethos (2022+) SW Tarmac SL8 SW Crux (2022+)
SW Venge Disc (2021+) Tarmac SL8 Crux (2022+)
  Venge Disc (2021+)  
117 MM
Model Length Thread Length Thread Pitch Interface
Carbon-Ti EVO X-12 117 mm 14 mm 12 x 1.0 mm Conical
FITS
SPECIALIZED SW Aethos (2021)
SW Crux (2018-2021) Crux (2018-2021)
SW Tarmac SL7/SL6 (2018-2021) Tarmac SL7/SL6 (2018-2021)
SW Venge Disc (2018-2020) Venge Disc (2018-2020)

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12 X 1.5 (FLAT)
116 MM
Model Length Thread Length Thread Pitch Interface
Extralite Blacklock 12.5A 116 mm 12.5 mm 12 x 1.5 mm Flat
FITS
GIANT Road (2018+)
120 MM
Model Length Thread Length Thread Pitch Interface
Carbon-Ti X-Lock 119 mm 119 mm 12 mm 12 x 1.5 mm Flat
Carbon-Ti X-Lock EVO 120 mm 120 mm 13 mm 12 x 1.5 mm Flat
Extralite 12.5 120 mm 12.5 mm 12 x 1.5 mm Flat
Far and Near Road 120 mm 13 mm 12 x 1.5 mm Flat
FITS
BIANCHI CINELLI SCOTT
Aria (2020-21) Nemo Tig Gravel (2021) Addict Gravel (2020-21)
Specialissima (2021) Pressure (2021) Foil Disc (2018-2019)
XR4 Disc (2021) PARLEE RZ7  
PINARELLO Disc (2019) ENVE Carbon Disc Fork RIDLEY Noah
125 MM
Model Length Thread Length Thread Pitch Interface
Carbon-Ti EVO 125 mm 125 mm 135 mm 12 x 1.5 mm Flat
Extralite Blacklock 12.5B 125 mm 14 mm 12 x 1.5 mm Flat
FITS
BIANCHI CANNONDALE SCOTT
Zolder Pro (2019) Synapse Disc Addict (2020-21)
PARLEE
Altum Disc (2020+) Chebacco (2020+) TTiR Disc
Z-Zero Disc/XD

Colnago

COLNAGO
Model Length Thread Length Thread Pitch Interface
Carbon-Ti EVO X-Colnago Front 117 mm 10 mm 12 x 1.5 mm Conical
FITS
  COLNAGO  
C68 (2022+) C64 (2018-2022) V4RS (2023)
V3RS & V3 (2019-‘22) G3X (2020-‘22) V2 (2018-2020)

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12 X 1.75 (FLAT)
118.5 mm (FLAT)
Model Length Thread Length Thread Pitch Interface
Carbon-Ti EVO 118.5 mm 118.5 mm 10 mm 12 x 1.75 mm Flat
FITS
TREK Madone Disc SLR Gen 7
122 mm (FLAT)
Model Length Thread Length Thread Pitch Interface
Carbon-Ti EVO 122 mm 122 mm 10.5 mm 12 x 1.75 mm Flat
Extralite Blacklock 12.5E 122 mm 12 mm 12 x 1.75 mm Flat
Carbon-Ti 123 mm 123 mm 12 mm 12 x 1.75 mm Flat
FITS
TREK Emonda Disc SLR Gen 6 Madone Disc SLR Gen 6

ROAD

ROAD 15 X 1.0 mm (FLAT)
Model Length Thread Length Thread Pitch Interface
Carbon-Ti 15 mm Road 125 mm 10 mm 15 x 1.5 mm Flat
FITS
PARLEE Altum Disc (Pre-2020) Chebacco (Pre-2020)

MTB

FRONT MTB 15 X 100

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FOX 15 X 100 (FLAT)
Model Length Thread Length Thread Pitch Interface
Carbon-Ti X-Lock Fox 146 mm 11 mm 14 x 1.5 mm Flat
Extralite 15.3 146 mm 11 mm 14 x 1.5 mm Flat
Far and Near Fox 146 mm 13 mm 14 x 1.5 mm Flat
KCNC 6061 Fox / E-Thru 146 mm 16 mm 14 x 1.5 mm Flat
KCNC 7075 Fox / E-Thru 146 mm 16 mm 14 x 1.5 mm Flat
FITS
FLOAT 32 15QR (2014-2020) TALAS 32 15QR (2014-2020)
FLOAT 34 15QR (2014-2020) TALAS 34 15QR (2014-2020)

MTB

ROCK SHOX 15 X 100 (FLAT)
Model Length Thread Length Thread Pitch Interface
Carbon-Ti X-Rock Shox 147 mm 10 mm 15 x 1.5 mm Flat
Carbon-Ti EVO Rock Shox 148 mm 11.5 mm 15 x 1.5 mm Flat
Extralite 15.4 147 mm 12.2 mm 15 x 1.5 mm Flat
Far and Near Rock Shox 147 mm 11 mm 15 x 1.5 mm Flat
KCNC 6061 Maxle 148 mm 13.5 mm 15 x 1.5 mm Flat
KCNC 7075 Maxle 148 mm 11 mm 15 x 1.5 mm Flat
FITS
SID SLUltimate / Ult. Brain / Select / Select (+) (2021+)
SID Ultimate / Select + / Select (2021+)
RS-1 (2015+) SID WC / XX / RCT3 / RLT / RL (‘12-‘15)
REBA RLT, RL (2012-‘15) PIKE DJ / RC / RCT3 / RLT / RL (‘14-‘15)
REVELATION WC / XX / RCT3 / RLT / RL (‘14-‘15)
SANTA CRUZ Stigmata

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DT SWISS 15 X 100 (FLAT)
Model Length Thread Length Thread Pitch Interface
*Carbon-Ti X-Lock DT 144 mm 17 mm 15 x 1.5 mm Flat
**Extralite 15.1 143 mm 8.7 mm 15 x 1.5 mm Flat
FITS
*OPM O.D.L. 100 **Torsion Box Models Only

MTB

MAGURA 15 X 100 (CONICAL)
Model Length Thread Length Thread Pitch Interface
Extralite 15.5A 129 mm 11 mm 15 x 1.0 mm Conical
Extralite 15.5B 139 mm 11 mm 15 x 1.0 mm Conical
FITS
MAGURA

MTB

FRONT MTB BOOST 15 X 110

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FOX BOOST 15 X 110 (FLAT)
Model Length Thread Length Thread Pitch Interface
Carbon-Ti X-Lock Fox Boost 156 mm 14 mm 14 x 1.5 mm Flat
Carbon-Ti EVO Fox Boost 155 mm 13 mm 14 x 1.5 mm Flat
Extralite 15.3B 156 mm 14 mm 14 x 1.5 mm Flat
Far and Near Fox Boost 155 mm 13 mm 14 x 1.5 mm Flat
KCNC 6061 Fox Boost 156 mm 17 mm 14 x 1.5 mm Flat
KCNC 7075 Fox Boost 156 mm 16 mm 14 x 1.5 mm Flat
FITS
FLOAT
32 Step-Cast Boost (2017+) 32 Boost (2016)
34 Step-Cast Boost (2017+) 34 Boost (2016+)
Not Compatible with Float 36 / 38 Models (2021+)

MTB

ROCK SHOX MAXLE BOOST 15 X 110 (FLAT)
Model Length Thread Length Thread Pitch Interface
Carbon-Ti Rock Shox Boost 156 mm 12 mm 15 x 1.5 mm Flat
Carbon-Ti EVO Rock Shox Boost 158 mm 11.5 mm 15 x 1.5 mm Flat
Extralite 15.4B 156 mm 12 mm 15 x 1.5 mm Flat
Far and Near Rock Shox Boost 155 mm 11 mm 15 x 1.5 mm Flat
KCNC 6061 Maxle Boost 158 mm 11 mm 15 x 1.5 mm Flat
KCNC 7075 Maxle Boost 158 mm 11 mm 15 x 1.5 mm Flat
FITS
SID Ultimate / Select + / Select (2021+)
REBA RL Boost (2016-‘20)
LYRIC RC / RC2 / RCT3 Boost (2016-‘20)
Not Comp. – SID SL / SID (Ultimate, Brain, Select+, Select) (2021+) / RS-1

REAR

REAR 12 X 142

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12 X 1.0 – SYNTACE / X-12 (12 x 142)
160 MM (CONICAL)
Model Length Thread Length Thread Pitch Interface
Carbon-Ti X-Lock EVO 159 mm 16.5 mm 12 x 1.0 mm Conical
Extralite 12.2 160 mm 17 mm 12 x 1.0 mm Conical
FITS
CANNONDALE CANYON Lux CF (2014-‘15)
Scalpel 29er (2013-‘15) Gran Canyon CF (2014-‘15)
SPECIALIZED
SW Aethos (2021) SW Crux / Crux (2019+)
SW Epic (2011-‘17) SW Stumpjumper HT (2015-‘16)
SW Venge / Venge (2019-‘20) Tarmac SL7 / SL6

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12 X 1.5 – E-THRU STYLE 12 x 1.5 (12 x 142)
158 MM
Model Length Thread Length Thread Pitch Interface
Carbon-Ti EVO 158 mm 158 mm 13.5 mm 12 x 1.5 mm Flat
Extralite 12.4 RA 158 mm 13 mm 12 x 1.5 mm Flat
KCNC 7075 E-Thru 161 mm 161 mm 18 mm 12 x 1.5 mm Flat
FITS
SCOTT Road Pre-2020 Addict Gravel (2019-‘21)
COLNAGO (159.7 mm)
Model Length Thread Length Thread Pitch Interface
Carbon-Ti EVO X-Colnago Rear 159.7 mm 13 mm 12 x 1.5 mm Conical
FITS
  COLNAGO  
C68 (2022+) C64 (2018-2022) V4RS (2023)
V3RS & V3 (2019-‘22) G3X (2020-‘22) V2 (2018-2020)

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163 MM
Model Length Thread Length Thread Pitch Interface
Carbon-Ti EVO 163 mm 163 mm 15 mm 12 x 1.5 mm Flat
Extralite 12.4 RB 163 mm 13 mm 12 x 1.5 mm Flat
FITS
GIANT Road Pre-2020 PINARELLO Dogma F
166 mm
Model Length Thread Length Thread Pitch Interface
Carbon-Ti 166 mm 166 mm 18 mm 12 x 1.5 mm Flat
Carbon-Ti EVO 166 mm 166 mm 17 mm 12 x 1.5 mm Flat
KCNC 7075 167 mm 167 mm 18 mm 12 x 1.5 mm Flat
KCNC 6061 167 mm 167 mm 19 mm 12 x 1.5 mm Flat
FITS
  BIANCHI  
Oltre XR4 Disc (2019+) Specialissima Disc(2021) Zolder Pro (2023)
CINELLI Pressure (2021) PINARELLO Prince Disk (’19) RIDLEY Noah
BASSO Noah Palta (2020) Diamante SV (2021)
168.7 mm
Model Length Thread Length Thread Pitch Interface
Carbon-Ti EVO 168.7 mm 168.7 mm 17 mm 12 x 1.5 mm Flat
FITS
SCOTT Addict (2020+)
172 mm
Model Length Thread Length Thread Pitch Interface
Carbon-Ti E-Thru 171 mm 17 mm 12 x 1.5 mm Flat
Carbon-Ti EVO 172 mm 172 mm 17 mm 12 x 1.5 mm Flat
Extralite 12.1 172 mm 18 mm 12 x 1.5 mm Flat
KCNC 7075 171 mm 171 mm 18 mm 12 x 1.5 mm Flat
KCNC 6061 172 mm 172 mm 19 mm 12 x 1.5 mm Flat
  FITS  
CINELLI Nemo Tig Gravel (2021+) GUERCIOTTI Eureka CX (2022+)
BMC FourStroke FS01 (2013-‘15) FourStroke FS02 (2013)
FOCUS Super Bud 29r (2014) GT Zaskar 100 (2013)
GIANT Anthem Adv. 27.5 (2015) XtC Advanced SL (2014-‘15)
LAPIERRE Zesty (2014) Spicy (2014)
TITICI Explosion (2013-‘15) Flexy (2014-‘15)
ROCKY MOUNTAIN Element 950 RSL 29 (2014) Vertex Carbon 29 (2012)
YETI
SB6 Carbon (2015-2016) SB4.5C Boost 148 (2016) SB5.5C Boost (2016)

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12 X 1.75 – MAXLE STYLE 12 x 1.75 (12 x 142)
165 mm (FLAT) 12 x 135-142
Model Length Thread Length Thread Pitch Interface
Carbon-Ti Maxle 135 167 mm 20 mm 12 x 1.75 mm Flat
Carbon-Ti EVO 165 mm 165 mm 22 mm 12 x 1.75 mm Flat
Extralite 12.4 RE 166 mm 19 mm 12 x 1.75 mm Flat
FITS
TREK
Emonda Disc (2018-‘22) Madone Disc (2018-‘22) Madone SLR Gen 7(2023+)
COLNAGO Prestige (2017) WILIER 101FX (2017) RIDLEY Noah SL Disc (2017)
174 MM (FLAT) 12 x 142 – 148
Model Length Thread Length Thread Pitch Interface
Carbon-Ti Maxle 174 mm 20 mm 12 x 1.75 mm Flat
Carbon-Ti EVO 174 mm 174 mm 20 mm 12 x 1.75 mm Flat
Extralite 12.3 176 mm 19 mm 12 x 1.75 mm Flat
Far and Near Maxle 172 mm 20 mm 12 x 1.75 mm Flat
KCNC 7075 Maxle 173 mm 21 mm 12 x 1.75 mm Flat
FITS
BMC FourStroke FS02 (2014) WILIER 101XN (2014)
IBIS
Mojo SL-R (2013) / Mojo HDR (2014) / Ripley (2013)
KTM
Myroon Prestige, Prime, Master, Elite / Scarp Prestige, Prime Master, Elite (‘15)
NINER RIP9 (2013-2015) NINER SIR9 (2015-2016)
TREK
Procaliber 9.9 SL / 9.8 SL / 9.7 (2016) Superfly 9.9 SL / 9.8 (2013-2015)
Superfly 9.7 (2015)

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REAR 12 X 148 BOOST

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BOOST 12 x 1.0 (12 x 148) (UDH)
166 mm (CONICAL)
Model Length Thread Length Thread Pitch Interface
Carbon-Ti X-Lock X-12 Boost 166 mm 17.5 mm 12 x 1.0 mm Conical
Carbon-Ti EVO X-12 166 mm 166 mm 17.5 mm 12 x 1.0 mm Conical
Extralite 12.2B 166 mm 17.2 mm 12 x 1.0 mm Conical
Far and Near X-12 Boost 165 mm 17 mm 12 x 1.0 mm Conical
FITS
BMC
Fourstroke 01 (2019-2021) Twostroke 01 (2019-2021)
SPECIALIZED
Aethos (2021+) Crux (2021+)
SW Epic / Epic (2017-’21) SW Epic HT / Epic HT (2017-’21)
Roubaix SL8 Tarmac SL8
RADON Jealous (2018)

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12 X 1.5 – E-THRU BOOST STYLE 12 x 1.5 (12 x 148)

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12 X 1.75 – MAXLE BOOST STYLE 12 x 1.75 (12 x 148)
Rear Maxle 12×135
Manufacturer Model Interface Length Pitch Thread Length Notes
Carbon-Ti X-Lock X-Maxle 135 Flat 167 12×1.75 20mm  
Fits:
Specialized Crux (2016)
Rear Maxle 12×142
Manufacturer Model Interface Length Pitch Thread Length Notes
Carbon-Ti X-Lock X-Maxle Flat 174mm 12×1.75 20mm  
Extralite Blacklock 12.3 – Maxle Flat 176mm 12×1.75 19.2mm  
Far and Near Maxle Flat 172mm 12×1.75 20mm  
Kcnc Low Profile – Maxle Flat 173mm 12×1.75 21mm  
Kcnc Indexing – Maxle Flat 173mm 12×1.75 21mm  
Kcnc QR – Maxle Flat 172mm 12×1.75 21mm  
Fits: 
BMC FourStroke FS02 (2014)
Ibis Mojo SL-R (2013)
Ibis Mojo HDR (2014)
Ibis Ripley (2013)
KTM Myroon Prestige, Prime, Master, Elite 27 and 29 (2015)
KTM Scarp Prestige, Prime Master, Elite 27 and 29 (2015)
Niner RIP9 (2013-2015)
Niner SIR9 (2015-2016)
Trek Procaliber 9.9 SL, 9.8 SL, 9.7 SL (2016)
Trek Superfly 9.9 SL (2013-2015)
Trek Superfly 9.8 (2013-2015)
Trek Superfly 9.7 (2015)
Wilier 101XN (2014)
Maxle Boost/DH 12×148/150
Manufacturer Model Interface Length Pitch Thread Length Notes
Carbon-Ti X-Lock X-Maxle 150 Flat 182mm 12×1.75 20mm  
Extralite BlackLock 12.3B – Maxle Boost Flat 182mm 12×1.75 20mm  
Far and Near Maxle Boost Flat 182mm 12×1.75 20mm  
KCNC 6061 Maxle Boost Flat 180mm 12×1.75 22mm  
Fits:
Niner RKT 9 RDO (Boost 148) (2016)
Many other Boost Maxle frames
Maxle ABP (Trek) 12×142
Manufacturer Model Interface Length Pitch Thread Length Notes
Carbon-Ti X-Lock X-Maxle ABP Flat 192mm 12×1.75 20mm  
Fits:
Trek Remedy 9.8 27,5 (2016)
Trek Remedy 9, 8 (2016)
Trek Superfly FS (2014-2015)
Trek Fuel EX (2014-2015)
Trek Slash (2014-2015)
Maxle ABP Boost (Trek) 12×148
Manufacturer Model Interface Length Pitch Thread Length Notes
Carbon-Ti X-Lock X-Maxle ABP Boost Flat 198mm 12×1.75 20mm  
Fits:
Trek Top Fuel 9.9 SL, 9.8 SL (2016)
Trek Top Fuel 9, 8 (2016)
Trek Remedy 29 Carbon (2016)
Trek Fuel EX 9.9, 9.8 29 (2016)
Trek Fuel EX 9, 8 29 (2016)
Rear “Scott” Standard 12×142
Manufacturer Model Interface Length Pitch Thread Length Notes
Carbon-Ti X-Lock X-Scott Flat 168mm 12×1 16mm  
Extralite Blacklock 12.4 – Scott Flat 168mm 12×1 17.2mm  
Far and Near Scott Flat 168mm 12×1 17mm  
Tune DC12 – Scott Flat 168mm 12×1 12mm  
Fits: Carbon-Ti and Far and Near. Note Extralite does not fit Santa Cruz models 
Lynskey Pro 29 (2015)
Santa Cruz 5010 (2014-2015)
Santa Cruz 5010 V2 (2016)
Santa Cruz Blur XC Carbon (2013)
Scott Spark 700 (2014-2015)
Scott Spark 900 (2014-2015)
Scott Scale 700 (2014-2015)
Scott Scale 900 (2014-2015)
Extralite version does not work on Santa Cruz frames
Rear “Scott” Boost Standard 12×148
Manufacturer Model Interface Length Pitch Thread Length Notes
Extralite BlackLock 12.4B – Scott Boost Flat 172mm 12×1 17.2mm  
Fits: 
Scott Boost Frames
Rear Shimano E-thru 12×142
Manufacturer Model Interface Length Pitch Thread Length Notes
Carbon-Ti X-lock E-thru Flat 171mm 12×1.5 17mm  
Extralite Blacklock 12.1 – E-thru Flat 172mm 12×1.5 18.3mm  
Far and Near E-thru Flat 169mm 12×1.5 18mm  
Kcnc Low Profile – E-Thru 171 Flat 171mm 12×1.5 18mm  
Kcnc Indexing – E-thru Flat 171mm 12×1.5 18mm  
Kcnc QR –  E-thru Flat 170mm 12×1.5 14mm  
Fits: 
BMC FourStroke FS01 (2013-2015)
BMC FourStroke FS02 (2013)
Focus Super Bud 29r (2014)
Giant Anthem Advanced 27.5 (2015)
Giant XtC Advanced SL 27.5 (2014-2015)
GT Zaskar 100 (2013)
Haibike Greed (2012)
Kona King Kahuna 29er (2003)
Lapierre Zesty (2014)
Lapierre Spicy (2014)
Titici Explosion (2013-2015)
Titici Flexy (2014-2015)
Rocky Mountain Element 950 RSL 29″ (2014)
Rocky Mountain Vertex Carbon 29″ (2012)
Yeti SB6 Carbon (2015-2016)
Yeti SB4.5C Boost 148 (2016)
Rear Shimano E-thru Short (161) 12×142
Manufacturer Model Interface Length Pitch Thread Length Notes
Kcnc Low Profile – E-thru 161 Flat 161mm 12×1.5 18mm  
Fits: 
None listed
Rear Shimano E-thru Long (Boost) 12×148
Manufacturer Model Interface Length Pitch Thread Length Notes
Carbon-Ti X-Lock – E-thru Boost Flat 178mm 12×1.5 18mm  
Extralite BlackLock 12.1B – E-thru Boost Flat 178mm 12×1.5 18.3mm  
Far and Near E-thru Boost Flat 180mm 12×1.5 18mm  
KCNC 6061 E-thru Boost Flat 177mm 12×1.5 19mm  
Fits: 
None listed
Rear X-12 (Syntace) 12×142
Manufacturer Model Interface Length Pitch Thread Length Notes
Carbon-Ti X-Lock X-12 Tapered 159mm 12×1 16.5mm  
Extralite Blacklock 12.2 – Specailized X-12 Tapered 161mm 12×1 17.2mm  
Kcnc Low Profile – Syntace X-12 Tapered 163mm 12×1 18mm  
Kcnc QR – DT Swiss (X-12) Tapered 159mm 12×1 15mm  
Kcnc Indexing – Syntace X12 Tapered 167mm 12×1 19mm  
Tune DC12 – Syntace X12 Tapered 159mm 12×1 16.5mm  
Fits: 
Cannondale Scalpel 29er (2013-2015)
Canyon Lux CF (2014-2015)
Canyon Gran Canyon CF (2014-2015)
Specialized S-Works Epic (2011-2017)
Specialized S-Works Stumpjumper HT (2015)
Rear X-12 Boost (Syntace Boost) 12×148
Manufacturer Model Interface Length Pitch Thread Length Notes
Carbon-Ti X-Lock X-12 Boost Tapered 166mm 12×1 17.5mm  
Extralite Blacklock 12.2B – Specailized X-12 Boost Tapered 166mm 12×1 17.2mm  
Fits: 
Specialized S-Works Epic HT (2017)
Specialized Epic HT (2017)
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