Installation, The bicycle wheel, Attaching the disc rotor to the hub – Hope Tech M4 Brake User Manual

Page 5

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2. Installation

The disc brake system is supplied fully assembled and bled, i.e. containing brake fluid.

The Cycle Dealer is responsible for supplying the caliper with the correct bolt mounting pattern to
fit your particular fork or frame. Some installations may require an additional mount bracket as
advised by your dealer.

In the first instance it is recommended that you install the brake as supplied without disconnecting
and routing the hose through frame guides (if present) or attempting to shorten the hose. Once you
have experienced the fully working brake you may decide at a later date to make some hose
routing or shortening modifications as described later in this manual.

2.1. The bicycle wheel

The wheel should be built by a skilled wheelbuilder using a 3 cross lacing pattern and correctly
tensioned. Your dealer will advise whether the hub in your wheel is compatible with this Hope disc
brake. There are two types of compatible hubs; splined Hope hubs that require a 5 bolt disc spider
(purchased separately) and International Standard 6 bolt hubs (made by Hope and other hub
manufacturers) where the disc rotor bolts directly to the hub.

2.2. Attaching the disc rotor to the hub

For Hope splined hubs fit the spider to the hub splines and ensure it is
squarely seated before securing it with the spider lockring. Hubs using a
spider require a disc rotor with a 5 bolt pattern. Attach the disc rotor to the
hub with the orientation of the rotor arms as shown in Fig 1(6 bolt disc
rotor shown).

It is recommended that a mild engineering adhesive often referred to as
‘threadlock’ is used on the bolt threads to prevent them unscrewing. Do not
use a permanent adhesive or this will prevent removing the disc rotor at a
later date.

Replace the wheel with the attached disc rotor in the forks (or frame)
making sure the wheel axle is sitting square in the dropouts and that the
wheel skewer is correctly tightened.

Figure 1

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