Sapim E-Strong Single Butted 12/13G Spoke

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The E-Strong is Sapim's Single Butted 12/13 gauge E-bike specific heavy duty stainless spoke available with 2.3mm diameter (13G) threaded area. Intended for heavy duty use, these spokes are produced using top quality stainless alloy material.

NOTE: This spoke uses a 2.3mm (13G) wire which requires a specific 13G nipple.  Not compatible with any alloy nipples in our product range.  Consider using a reduction nipple for compatibility with standard bicycle rims designed for use with 14G nipples. 


Technical information:

  • Weight: 32 spokes weigh 338g (32 x 310mm); 10.56g / spoke (Note: full length 310mm wire)
  • Wire Diameter: 2.6mm (12G) at neck and J-Bend and 2.3mm (13G) for main body wire and threaded area (requires 13G nipple)
  • Colors: black and silver
  • Spoke Head/Neck: J-Bend
  • Standard lengths: 250mm to 310mm (even lengths)
  • Custom lengths: 251mm to 309mm (odd lengths), and any length shorter than 250mm*.  


  • Optional Brass Reduction nipples allow the use of 13G spoke wire in standard bicycle rims originally designed for 14G spoke nipples.
  • Minimum order quantity is 10 spokes.

*Important: All custom length spoke orders have a $0.40 non-refundable labor charge. Additionally, lengths shorter than 250mm are final and can not be refunded, returned, or exchanged. 

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