Wheelbuilding: Strummer HR-10 Ratchet with Aeroroad #1035 30 mm (20/24H)

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Below are the spoke sizes for the hub and rim combinations below:

Hub Variants:
 HR-10 4-Pawl Strummer  (9x100/10x130, 20/24H)
 Strummer HR-10 Ratchet (9x100/10x130, 20/24H)

Rims Variants:
Strummer Aeroroad #1035 30mm  (20/24H)
Strummer Race-700 30 mm (20/24H)

Assembly Recommendations:
2 Cross for Rear Wheelset section.

Front Hub Left Spoke Right Spoke L/R Tension
Radial (Recommended) 275mm 275mm 100%
1 Cross 279mm 279mm
100 %
2 Cross (Recommended) 287 mm 287 mm
100%
3 Cross 297mm 297mm
100 %
Rear Hub Left Spoke Right Spoke R/L Tension
Radial 273mm 265mm 44%
1 Cross 275mm 269  mm
44%
2 Cross (Recommended) 283mm 278mm
43%
3 Cross 292mm 291mm
43%

 

Warning: This guide is created  to help determine the correct spoke size when assembling a Strummer wheelset. This guide can be used as a reference, but it is important to remember that there is a possibility of inaccurate information due to changes in product sizes/specifications, or user error when inputting data.

Caution: This guide is intended to provide general information and should not be used as the sole reference for determining spoke sizes. There may be a reasonable difference/tolerance in spoke sizes of +/- 1 mm depending on the brand and type of nipple used during ERD measurements or wheelset assembly. Differences may also arise from the rounding process of the numbers that appear during calculations. It is recommended to re-measure and re-calculate before assembly (using the brand and type of spokes & nipples that will be used in the wheelset assembly process). It is recommended to consult a professional bicycle mechanic or manufacturer's specifications before assembling a wheelset. Using the wrong spoke size can be dangerous  safety and wheel structure failure. Always take proper precautions and follow the manufacturer's guidelines to ensure the safety of yourself and others when working on  your bike.