Hub FCS-21D

FCS-21D

specification
Type :
4 seal bearing
Hole :
24(2:1)
Freehub: SHIMANO 11S, MS or XDR
Disc Brake Shimano center lock
P.C.D :
47mm / 63mm
O.L.D :
142mm
Thru Axle :
Ø12mm
Flange :
57mm
Weight :
284g

Features:

  • Zero Drag Hub system
  • Top speed in shortest time
  • Lengthen gliding distance with gliding speed maintained
  • Effectively eliminate noise

Accomplishment:

  • iF Design Award 2018: Taipei Cycle Show-- Zero Drag Silent Hub
  • TAIPEI CYCLE d&I awards 2022--FOSS Zero Drag Silent Wheel set

Hub Maintenance:

  • Use dry cloth (filament fabric most recommended) or soft bristle brush to lightly flick dust from ratchet.
  • 5W-40 , 5W-50 Motor oil or Chain oil (50% extreme pressure additives) is recommended to apply (5-6 drops) on ratchet.

Crucial:

  • Do not use degreasing cleaner or high-pressure water gun.
  • Please avoid using lubricating grease for maintenance, as its thick consistency can cause the ratchet to engage less smoothly.
  • Please do not replace bearings without Foss consulting