SHIMANO Dura-Ace Track HB-7710

In the cup and cone type, the stress acts directly against the load, whereas in the industrial type sealed bearing, the stress is less likely to act in the direction of the load from its over-contacted point.

The cup and cone type also has many advantages such as higher durability and easier maintenance, which is why Shimano still uses the cup and cone type in all of its hubs.

The following DURA-ACE TRACK 7710 hub is a professional hub that Shimano continues to produce with prestige.

[SPEC]

Model No. : HB-7710
Series : DURA-ACE TRACK 7710 Series
Average weight : 203 g (Front),298 g (Rear Double Thread)
Shaft fixing method : Nut
Bearing : Stainless ball
O.L.D. : 100 mm(Front), 120 mm (Rear Double Thread)
Flange diameter : 46 mm(Front), 52 mm(Rear Double Thread)
Dimension between flanges : 74.0 mm(Front), 67.0 mm(Rear Double Thread)
Offset : 0 mm(Front), 0 mm(Rear Double Thread)
P.C.D.: 38 mm(Front), 44 mm(Rear Double Thread)