Drum brake hub X-SD by Sturmey Archer in various versions.
The X-SD is smaller and lighter than the XL-SD. She comes at trikes, velomobiles
And other vehicles with single wheel suspension.
The advantages of the drum brake are their great maintenance intervals and
High reliability under all weather conditions.
The silver version corresponds to the original X-SD.
All other versions have been refined from the X-SD.
X-SD: aluminium bright,
Weigth: 380 gr.
"Flat": aluminum bright, outer flange turned for carbon caps,
with aluminum distance between the bearings
Weight: 345 gr.
"Black": original X-SD, black anodized
Weigth: 380 gr.
"Highend": black anodized, outer flange turned, cooling fins turned,
aluminum distance between the bearings
Weight: 340 gr.
Technical details:
Number of holes: 28, 32 and 36
Color: plain or black anodized aluminum
scope of supply: 1 piece
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