HOPE rear hub Pro 5 | Classic 6-hole 12x148 mm Boost thru-axle Freewheel SRAM XD | blue
The new Hope Pro 5 rear wheel hub from the English cult manufacturer is the logical further development of the popular classic, the Hope Pro 4. In the development of the latest generation of Hope hubs, the experience of 30 years of design and production of high-quality drive elements flowed in with the aim of using proven technology improve to meet the demands of current and future bicycle technology.
The first thing that catches your eye is the new profile of the hub shell. First of all, the Pro 5 differs visually from its predecessor. The background is the use of larger bearings in connection with an arrangement that is more suitable for the load, as well as the parallel tapered axle design. In this way, the rigidity of the hub could be increased without additional weight, which noticeably increases the resilience. The highlight of the Hope 5 is a new 6-pawl freewheel system in offset design, which provides a total of 108 locking points. For the first time, you can choose between 6-hole or Centerlock for the brake disc attachment. In addition, the hubs are also available as a straight pull version and in the common freewheel standards. In addition to the technical innovations, the focus was particularly on the variety of hub intended use . Thus, the hubs are well prepared for a change in the installation standard. Replacing the freewheel body and the axle n-adapter is child's play without special tools, making your own wheels particularly versatile. Everyone knows that the British don't have the best sunny weather, so the new hubs could be put through their paces under the most adverse conditions. If a component has reached its wear limit, the Pro 5 can be completely disassembled and repaired using normal tools. In Hope's typical design, the hubs are milled from a solid block of 2014 T6 aluminum and anodized in the usual colors.
6 pawl freewheel system in offset design
The 6-pawl freewheel system in offset design is characterized by the fact that three of the six pawls are always engaged when riding in order to center the freewheel in the pawl and thus distribute the load evenly. In addition, the freewheel toothing has been increased from 44 teeth (Pro 4) to 54 teeth, resulting in a total of 108 locking points. In addition, material has been removed from the center of the pawl springs, which reduces the spring force and thus reduces air resistance. With the Pro 5, Hope creates the right balance between acceleration behavior and durability. There is also an e-bike specific hub version available, which is equipped with a freewheel system that is designed for the increased demands and forces that occur on modern e-bikes, in which all 6 pawls engage at the same time.
Labyrinth seal
One of the main goals of the Hope designers was to reduce friction in the drive mechanism. They achieved this with the help of the new, zero-resistance labyrinth seal on the drive side. This is a non-contact shaft seal. In addition, the friction in the drive mechanism could be reduced by using the improved pawl system and springs. With the reduction of friction in the drive system, the resilience and thus the durability of the rear wheel hub was improved at the same time. The non-drive end bearings have an external seal.
Technical specifications:
intended use : Cross Country to Enduro
Material hub: aluminum 2014 T6, stainless steel
Material freewheel body: aluminum, hard anodized for low wear
Installation width: 148 mm
axle type : 12 x148 mm thru axle (boost)
Number of holes: 28 and 32 holes
Brake disc mount: 6-hole (IS2000)
Freewheel compatibility: 11-speed and 12-speed SRAM XD
Freewheel type: 6 pawls, 54 detents (offset design 108 detent points, maximum 3.33° free travel)
bearing : Stainless steel industrial bearings
Spoke Type: Standard Spokes (J-Bend)
Seal: rubbing seals
Spoke tension: not specified
maximum system weight: kA
Finish: Gloss Anodized
Colour: blue with lasered logos
Weight according to manufacturer: k. A
Weight weighed: 313g (32 holes)
Scope of delivery: 1x HOPE rear wheel hub Pro 5 | Classic 6-hole 12x148 mm Boost thru-axle Freewheel SRAM XD | blue
