CyberFront SP 48g
Tech info
Description
Road-race straight-pull front hub, radial lacing pattern.
QR 9x100mm standard, oversized 14mm axle.
ABEC5 low-friction sealed cartridge bearings with external hexagonal preload tuner.
Black anodized body with laser etched graphics, "Hart-Coated" axle-ends.
Hub clearance
WARNING:
We warmly recommend to precisely check all the operations involved for the assembling and the tuning process before setting your order.
You'll have to take the full responsability on both hub-assembling and hub-tuning (see details on manual).
Alternatively consider CyberFront SL and CyberRear SL that offer the easiness of externally mounted standard elbow spokes and the widest possible camber of all spoke flanges.
CyberFront SP features the widest possible spoke camber to offer higher lateral stiffness.
I fits mos road forks however few makers introduced bulge legs that reduce hub clearance.
For that reason also we have introduced CyberFont SP-X that is still able to achieve that same high lateral wheel stiffness allowing a sensibly higher spoke tension.
Hub Dimensions
Lacing
CyberFront SP 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 SP
Radial lacing - Straight pull spokes
|
Spoke-end Diameter
|
Spoke Length
|
|
515
|
247
|
|
520
|
250
|
|
525
|
252
|
|
530
|
255
|
|
535
|
257
|
|
540
|
260
|
|
545
|
262
|
|
550 |
265
|
|
555
|
267
|
|
560
|
270
|
|
565
|
272
|
|
570
|
275
|
|
575
|
277
|
|
580
|
280
|
|
585
|
282
|
|
590
|
285
|
|
595
|
287
|
|
600
|
290
|
|
605
|
292
|
|
610
|
295
|
|
615 |
297 |
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 271mm spoke.
Example 2: your "spoke-end diameter" is 567mm use 273mm spoke.
Example 3: your "spoke-end diameter" is 569mm use 274mm spoke.
Radial lacing only.
Dimensions for wheel building
Spoke hole Ø: 2.5mm
Flange drilling Ø: 25mm
Center to flanges: 43mm
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".
