CyberFront SP-X wheel-building
Here you find all the necessary instructions to realize your dream wheels with pre-calculated spoke lengths.
Follow instruction step by step:
1)Measure your "spoke-end diameter"
2)Find your front spoke length (left and right side) on table A
(All measures are expressed in mm)
3)Lace the wheel respecting correct lacing pattern (see below)
4) Notes about different spoke materials (Butted-steel, Berd, Carbon-metal)
Maximum spoke tension: Refer to manual
Warning:
spoke lacing and tensioning require skills and experience,refer to an expert
professional wheel builder for these operations.
1) "spoke-end diameter"
Rim manufacturers always offer ERD figures however we warmly recommend to precisely measure the rim+nipple combination.
Basically
a correct spoke calculation requires exact "spoke-end diameter" and rim drilling.
Spoke-end
diameter depends on your rim internal diameter and nipple type.
How to measure "spoke-end diameter"
2) CyberFront SP-X
Left and Right side - Straight-pull spokes
Spoke-end
Diameter
|
Spoke
Length
20H |
515
|
262
|
520
|
265
|
525
|
267
|
530
|
270
|
535
|
272
|
540
|
275
|
545
|
277
|
550 |
280
|
555
|
282
|
560
|
284-285
|
565
|
287
|
570
|
289-90
|
575
|
292
|
580
|
294-295
|
585
|
297
|
590
|
299-300
|
595
|
302
|
600
|
304
|
605
|
307
|
610
|
309
|
615 |
311 |
Table A
Note: We
list "spoke-end diameters" every 5mm step. If your "spoke-end
diameter" measure is in between 2 steps adjust your spoke length consequently.
Example 1: your "spoke-end diameter" is 563mm use 286mm spoke.
Example 2: your "spoke-end diameter" is 602mm use 305mm spoke.
Example 3: your "spoke-end diameter" is 604mm use 306mm spoke.
3) CyberFront SP-X
Left and Right side - Straight-pull spokes
Lacing: correct lacing patterns with straight-pull spokes must be as shown below.
4) Spoke Materials
Steel
Spokes: Hub
f langes accept standard spoke heads however
we recommend to use only high quality "butted" steel spokes.
Butted spokes are lighter and allow a better spoke
aligningment that translates in a reduced stress of
the parts and an overall stiffer lacing.
Berd
spokes:
Flanges
are designed to fit Berd spokes too.
All edges are well rounded thereafter "Tangential
Straightpull Inserts" are not necessary.
Consequently adjust Table A lenghts as follows:
-
subtract 2mm from Table values
if "Without
Tangential Straightpull Inserts"
- keep
same values on Table
if "With
Tangential Straightpull Inserts"
Berd Tangential Straightpull Insert
Carbon-Titanium
Spokes: Hub
flanges accept composite spoke that feature
standard thin metal ends (Titanium
or Steel) since
the short metal head should be well bendable in order to get the spoke correctly
aligned with the rim.
When lacing Carbon Titanium spokes make sure to add this important step to
the lacing process:
- As spokes are fully tensioned settle
spoke heads (before
final truing).
- To settle
spoke heads
push the metal area of the spoke immediately after the hub flange with
a small wood/plastic rod in order to settle them permanently to the exact
direction.
- Then execute the final truing.
Note
that cabon-metal spokes are extremely sensitive to the following:
- Twist: thread-to-head section should never get twisted not even during lacing.
- Spoke to nipple-alignment: each nipple should get perfectly aligned with
its spoke.
-
Avoid exposure to hi-temperatures
as behind car windows under hot sun, transport, storage etc.
-
Avoid hits with any hard object
during
riding, transport,
storage etc.
Fully respect these basic info before and after installation.
100% made in Italy