CyberFront SP-B / CyberRear SP-2B wheel-building

Here you find all the necessary instructions to realize your dream wheels with pre-calculated spoke lengths

Follow instructions step by step:

1)Measure your "spoke-end diameter" (not ERD)

2)Find front hub spoke length on table A

3)Find your rear spoke length (left side) on table B

4)Find your rear spoke length and lacing pattern (drive side) on table C

(All measures are expressed in mm)

4)Lace the wheel respecting correct lacing pattern (see below)

Maximum spoke tension:- Refer to manuals of CyberFront SP-B and CyberRear SP-2B

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-B

Radial lacing - Straight pull spokes (any drilling count)

Spoke-end Diameter
Spoke Length
310
143
315
146
320
148
325
151
330
153
335
156
340
158

345

161
350
163

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


3)CyberRear SP-2B

Left side- Straight pull spokes

Spoke-end Diameter
Spoke Length
24
H
Crossed Lacing
Spoke Length
20
H
Crossed Lacing
Spoke Length
28H
Radial Lacing
310
154
159
143
315
157
161
146
320
159
164
148
325
162
166
150
330
164
168
153
335
167
171
156
340
169
173
158

345

172
176
160
350
174
178
163

Table B


4)CyberRear SP-2B

Drive side - Straight pull spokes

Spoke-end Diameter
Spoke Length
24
H
Spoke Length
20
H and 28H
310
152
159
315
154
161
320
157
164
325
159
166
330
161
168
335
164
171
340
166
173

345

169
176
350
171
178

Table C

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

 

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