CyberFront & Rear SPD-3 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 hub spokes length on table A

3)Find your rear spokes length on table B

(All measures are expressed in mm)

4)Lace the wheel respecting correct lacing pattern

 

Maximum spoke tension: Refer to manuals CyberFront SPD-3 CyberRear SPD-3

Rim offset:
(normally 2 - 3mm) influences the spoke length for an average 0.3mm.
You may neglect it or eventually use that tiny amount just for rounding lengths to the available spoke size.

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 SPD-3

Straight-pull spokes - 24H

Spoke-end Diameter
Disc Side
Right Side
515
253
256
520
256
259
525
258
261
530
261
264
535
263
266
540
266
269
545
268
271

550

271
274
555
273
276
560
276
279
565
278
281
570
281
284
575
283
286
580
286
289
585
288
291
590
291
294
595
293
296
600
296
299
605
298
301
610
301
304

615

303

306

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.

 


 

 

2)CyberRear SPD-3

Straight-pull spokes - 24H

Spoke-end Diameter
Drive Side
Disc Side
515
253
256
520
256
259
525
258
261
530
261
264
535
263
266
540
266
269
545
268
271

550

271
274
555
273
276
560
276
279
565
278
281
570
281
284
575
283
286
580
286
289
585
288
291
590
291
294
595
293
296
600
296
299
605
298
301
610
301
304

615

303

306

Table B

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.

 

Lacing: correct lacing patterns with straight-pull spokes must be as shown below.

 

100% made in Italy