Gear Hub fan
Join Date: Nov 2008
Location: Reno, NV
Bikes: Civia Hyland Rohloff, Swobo Dixon, Colnago, Univega
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Third consideration. Note the O.L.D. dimension on the hubs listed in the linked to PDF above. The 3 speed and 7 speed hubs may differ. With the wheel removed measure your rear dropout inside width and see if it is close to the listed dimmension for the 7 speed hub. The breezer Freedom is a aluminum frame so cannot be cold set to a different rear dropout spacing width.
The 7R46 Shimano hub is listed as 130mm width. The wider 3R40 is listed as 127mm width. The narrower version is 120mm. If you have the 120mm version of the 3R40 fitted then I doubt if you can fit the 7R46 as a replacement. If you have the 127mm version of the 3 speed then the 7R46 can be fitted with minor springing of the aluminum rear frame IMO or w/o the roller brake fitted it may be very close to the required width.
Again if tour original hub is 120mm OLD then an alternative is a Sturmey Archer 5 speed wide range hub. About the same 250% range as the Shimano 7 speed and it is available in close to 120mm width as is the SRAM P5 IGH hub.
Gear Hubs Owned: Rohloff disc brake, SRAM iM9 disc brake, SRAM P5 freewheel, Sachs Torpedo 3 speed freewheel, NuVinci CVT, Shimano Alfine SG S-501, Sturmey Archer S5-2 Alloy. Other: 83 Colnago Super Record, Univega Via De Oro
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