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
257
520
256
260
525
258
262
530
261
265
535
263
267
540
266
270
545
268
272

550

271
275
555
273
277
560
276
280
565
278
282
570
281
285
575
283
287
580
286
290
585
288
292
590
291
295
595
293
297
600
296
300
605
298
302
610
301
305

615

303

307

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
257
520
256
260
525
258
262
530
261
265
535
263
267
540
266
270
545
268
272

550

271
275
555
273
277
560
276
280
565
278
282
570
281
285
575
283
287
580
286
290
585
288
292
590
291
295
595
293
297
600
296
300
605
298
302
610
301
305

615

303

307

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