HyperBoost/Smart3 F - HyperBoost/Smart3 R - HyperLefty3

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 spoke length on table

3) See specific info about spoke type

4) Follow correct lacing patterns

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

Maximum spoke tension:

HyperBoost3 F - Refer to manual

HyperBoost3 R - Refer to manual

HyperSmart3 F - Refer to manual

HyperSmart3 R - Refer to manual

HyperLefty3 - Refer to manual

Spoke lacing and tensioning require skills and experience, refer to an expert professional wheel builder for these operations.

1
"Spoke-End Diameter"

Rim manufacturers 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 too.

How to measure "spoke-end diameter"

2
Spoke lenght
HyperBoost/Smart3 F - Hyper/SmartBoost3 R - HyperLefty3

All sides - straight-pull spokes - all measures are in mm

Spoke-end
Diameter
Spoke Length
24H
Spoke Length
28H
26/27.5/29' Rims
    
515
254-255
261-262
520
257
264
525
259-260
266-267
530
262
269
535
264-265
271-272
540
267
274
545
269-270
276-277

550
272
279
555
274-275
281-282
560
277
284
565
278-279
286-287
570
281
289
575
283-284
291-292
580
287
294
585
289-290
296
590
292
298-299
595
294-295
301
600
297
303-304
605
299
306
610
302
308-309
615
303-304
311
620
306
313-314

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

Steel Spokes
Flanges accept standard spoke heads however we recommend to use only high quality butted spokes.
Butted spokes are lighter and allow a better spoke aligningment that translates in a reduced stress of the parts.

Berd spokes
Flanges fit Berd spokes, since edges are well rounded "Tangential Straightpull Inserts" are not necessary.
Adjust Table A lenghts as follows:
Adding "Tangential Straightpull Inserts": use same values on Table A
WITHOUT "Tangential Straightpull Inserts": subtract 2mm from table values.



WARNING: never modify even slightly the flanges of Extralite hubs not their surface finish.



4
Lacing: correct lacing patterns with straight-pull spokes must be tangential, exactly as shown below
(and not as the traditional 2 or 3 crossings used for elbow spokes)

Warning: spoke lacing and tensioning require skills and experience, refer to an expert professional wheel builder for these operations.

 

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