SPOKE LENGTH
- Spokes
The Rohloff SPEEDHUB 500/14 uses a spoke hole circle diameter of 100 mm with 2.7 mm spoke holes for a 32 spoke wheel. The spoke sizes needed to build a 26" wheel are normally difficult to find in the average bike shop. For this reason silver Sapim 2.0/1.8/2.0mm Race spokes are available from Rohloff in lengths of 228mm to 244mm. The common spoke length (for 26" wheels) of 238mm is also available in black. Below is a table showing the correct spoke length for the most common rims on the market. Due to the symmetrical hub flanges the spokes are the same length on both sides of the wheel:
Spokelist Download ( 7 KB PDF)
In case your rim is not listed above, you can use the spoke calculator to find the correct spoke length.
Spoke length calculator
On wheel sizes 26" and 28" the spokes must always be laced in a two cross pattern. Therefore, the table above shows the spoke lengths for a two cross lacing pattern. On wheel sizes 24" and under, the spokes must only be laced in a one cross lacing pattern. Therefore, the table above shows the spoke lengths for a one cross lacing pattern.
Spokes/nipples
Because the spokes have a large say over the stability of the overall wheel, exclusive quality spokes from well known manufacturers should be used. Double thickness spokes from DT-Swiss and Sapim are good examples.
When applying a lot of force on the wheel (pannier bags, tandem use, extreme use), the spokes should be fitted with self-locking spoke nipples (lock nipples) during the wheelbuilding process. This reduces the risk of the spokes loosening whilst riding. On rims without reinforced nipple holes, only spoke nipples with rounded heads should be used (Sapim Polymax or DT swiss Prohead), this spreads the spoke tension evenly through the nipple head against the rim.
For further info on spokes please refer to the websites of DT-Swiss and Sapim.