CyberFront SL 49g
Tech info
Description
Road-race front hub, classic J-bend spokes
Flanges are compatible with standard steel spokes and Berd spokes too.
QR 9x100mm standard, oversized 14mm axle.
Low-friction sealed cartridge bearings with external hexagonal preload tuner.
Black anodized body with laser etched graphics, "Hart-Coated" axle-ends.
Hub Clearance
CyberFront SL has more clearance than CyberFront SP, can fit any fork
Hub Dimensions
Spoke-end Diameter
How to measure "Spoke-End-Diameter"
Spoke-end diameter depends on your rim and nipple type and length.
Below you see how to measure SED for both nipple types:
External nipple configuration
Internal nipple configuration
Take measures very precisely because a well correct nipple/spoke assembly accepts a spoke-length tolerance of +/-1mm only.
(All measures are expressed in mm)
External nipple configuration
1) Insert two J-spokes (random size) with the nipples (of your final build) into 2 opposite rim holes.
This simple trick helps to keep spokes aligned and slightly tensioned.
2) Precisely measure distance between nipples.
Be careful to take measure between the 2 nipple-ends.
3) Add 2x by the nipple height (of your final build) to the measure above.
This gives "Spoke-End-Diameter".
Note: with slotted nipples measure height inside the cut.
Internal nipple configuration
You can get the necessary data following the procedure below:
1) Precisely measure outer rim diameter (A).
2) Insert a nipple of your final build into a hole (use a spoke to hold nipple in position).
3) Precisely measure distance between nipple-top and outer rim diameter (B).
This is the correct caliper positioning inside the rim (don't cut your rim!)
4) A-2B = "Spoke-End-Diameter".
Lacing
CyberFront SL 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 on table A
(All measures are expressed in mm)
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 SL
Radial lacing - Elbow spokes
|
Spoke-end Diameter
|
Spoke Length
|
|
515
|
244
|
|
520
|
246
|
|
525
|
249
|
|
530
|
251
|
|
535
|
254
|
|
540
|
256
|
|
545
|
259
|
|
550 |
261
|
|
555
|
264
|
|
560
|
266
|
|
565
|
269
|
|
570
|
271
|
|
575
|
274
|
|
580
|
276
|
|
585
|
279
|
|
590
|
281
|
|
595
|
284
|
|
600
|
286
|
|
605
|
288
|
|
610 |
291 |
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 269mm spoke.
Example 2: your "spoke-end diameter" is 567mm use 271mm spoke.
Example 3: your "spoke-end diameter" is 569mm use 272mm spoke.
Radial lacing is allowed on internal and external flange side and only with D/B spokes (central section equivalent to Ø 1.5mm).
Dimensions for wheel building
Spoke hole Ø: 2.6mm
Flange drilling Ø: 29mm
Centre to flanges: 40mm
