BlackLock (front axles) From 25g
Their unique design ensures a prefect function with a well balanced dimensioning.
The notched area of the thread is reinforced by the allen groove walls.
Tech info
Description
Thru-Axles for TA12 or QR15 forks.
Precise AL7075T6 construction, stealth 6mm Allen, equipped with Stainless or Bronze washer.
Compatible with most popular rigid and suspension forks.
Refer to detail page for exact dimensions and thread pitch.
Model Finder
Always double check compatibility measuring your original axle dimensions.

Thread Pitch Check
Simple method to check the thread pitch of your axle with a common vernier caliper.
Measure the total width of 4 thread "roots" as follows:
Align caliper "jaws" with the "first" and with the "fifth" crests (4 roots).
Total width 4mm --> thread pitch 1mm
Total width 5mm --> thread pitch 1.25mm
Total width 6mm --> thread pitch 1.5mm
|
Model
|
Compatibility
|
Head type
|
A
Total length |
B
Thread length |
C & D
Thread pitch and diameter |
Weight
|
|
Front Axles 12mm
|
|
|||||
|
BlackLock 12.5
|
Road forks 120mm |
Flat*
|
120
|
12.5
|
M12x1.5
|
20g
|
|
BlackLock 12.5 A
|
Road forks 116mm |
Flat*
|
116
|
12.5
|
M12x1.5
|
19g
|
|
BlackLock 12.5 B
|
Road forks 125mm |
Flat*
|
125
|
14
|
M12x1.5
|
21g
|
|
BlackLock 12.5 E
|
Trek Emonda fork |
Flat*
|
122
|
12
|
M12x1.75
|
20.5g
|
|
BlackLock 12.5 F
|
Road forks 120mm x1 |
Flat*
|
120
|
12.5
|
M12x1
|
20g
|
|
BlackLock 12.5 G
|
Specalized, conical, 114mm x1 |
Conical *
|
114
|
12.5
|
M12x1
|
19g
|
|
Front Axles 15mm
|
||||||
|
BlackLock 15.1
|
DT-Swiss XMM29' (Torsion Box models only) |
Flat*
|
143
|
9
|
M15x1.5
|
25g
|
|
BlackLock 15.2 (Discontinued)
|
DT-Swiss XMM29' (All models) |
Flat*
|
143
|
16
|
M15x1.5
|
26.4g
|
|
BlackLock 15.3
|
Fox |
Flat*
|
146
|
14
|
M14x1.5
|
26.4g
|
|
BlackLock 15.3 B
|
Fox Boost 110 |
Flat*
|
156
|
14
|
M14x1.5
|
28g
|
|
BlackLock 15.4
|
Rock Shox Sid / Sid Ultimate 2021 / Reba / RS1 |
Flat*
|
147
|
12
|
M15x1.5
|
26.7g
|
|
BlackLock 15.4 B
|
Rock Shox Boost 110 (not for Sid Ultimate 2021) |
Flat*
|
156
|
12
|
M15x1.5
|
29g
|
|
BlackLock 15.5A 129mm
|
Magura |
Conical *
|
129
|
11
|
M15x1
|
26g
|
|
BlackLock 15.5B 139mm
|
Magura |
Conical *
|
139
|
11
|
M15x1
|
27g
|
|
|
||||||
|
Rear Axles
|
|
|
|
|
|
|
|
BlackLock 12.1
|
Shimano E-Thru |
Flat*
|
172
|
18
|
M12x1.5
|
29g
|
|
BlackLock 12.1 B
|
Shimano E-Thru Boost |
Flat*
|
178
|
18
|
M12x1.5
|
31g
|
|
BlackLock 12.2
|
Specialized Road & MTB, 142mm only |
Conical *
|
160
|
17
|
M12x1
|
29g
|
|
BlackLock 12.2 B
|
Specialized Boost 148mm only |
Conical *
|
166
|
17
|
M12x1
|
31g
|
|
BlackLock 12.3
|
Maxle |
Flat*
|
176
|
19
|
M12x1.75
|
30g
|
|
BlackLock 12.3 B
|
Maxle "Boost" |
Flat*
|
182
|
20
|
M12x1.75
|
30g
|
|
BlackLock 12.4 (Discontinued)
|
Scott, etc (not compatible with Santa Cruz) |
Flat*
|
168
|
17
|
M12x1
|
29g
|
|
BlackLock 12.4 B
|
Scott Boost pre-'22, Cannondale F-si 2019 |
Flat*
|
172
|
17
|
M12x1
|
29g
|
|
BlackLock 12.4 C
|
Scott Spark from-2022 |
Flat*
|
178
|
13.5
|
M12x1
|
30g
|
|
BlackLock 12.4 RA
|
Scott Road pre-2020 |
Flat*
|
158
|
13
|
M12x1.5
|
27g
|
|
BlackLock 12.4 RB
|
Giant Road |
Flat*
|
163
|
13
|
M12x1.5
|
28g
|
|
BlackLock 12.4 RC
|
Scott Road 2020 |
Flat*
|
168
|
13
|
M12x1.5
|
29g
|
|
BlackLock 12.4 RE
|
Trek Emonda |
Flat*
|
166
|
19
|
M12x1.75
|
28g
|
|
BlackLock 12.6
|
Sram UDH derailleur (TopFuel/Orbea etc.) |
Flat*
|
185
|
15
|
M12x1
|
31g
|
* Length measure does't include head (Flat or Conical).
Manuals
Spare Parts
Spare Parts
BlackLock washer 1 g
5,22 €
