Chapter 1: Guide to safe On- and off-road operation
Before riding or pulling your trailer-bike, read the Special Trailer-bike Riding Information. Before performing adjustments, read at least Chapter 1 and also these instructions.
It is necessary to remove the lead bicycle seatpost to install the hitch.
On some colored seatposts, or seatposts with lettering, the hitch bushing may mar the seatpost.
1. Mark the height of the lead bicycle seatpost.
2. Hold a gray nylon hitch bushing (Figure 1) against the seatpost and mark immediately above the bushing with a piece of electrical tape or similar tape.
Warning—Do not use shims or any other method to install the hitch higher on the seatpost than the top of the frame as this could result in personal injury or damage to your bicycle. The hitch and bushing must rest against the frame or seatpost collar of the frame.
3. Apply a light coat of Wrench Force™ grease or a similar product to the lead bicycle seatpost immediately below the tape marking.
This will improve handling response of the trailer-bike.
4. Remove the lead bicycle seatpost from the frame.
5. Select the correct hitch bushing size from Table 1:
The seatpost diameter is normally marked on the seatpost immediately below the minimum insertion mark.
Table 1: Seatpost diameter and shim size
Bushing #
Post Diameter
Application Guide
Note
No. 1
21.0-23.0mm
small bushing/inner sleeve
Cut off inner sleeve at marking
Small
23.0-25.4mm
small bushing alone
No. 2
24.6-26.4mm
medium bushing/ inner sleeve
Medium
26.6-28.6mm
medium bushing alone
No. 3
28.0-30.2mm
large bushing/ inner sleeve
Large
30.4-32.0mm
large bushing alone
6. Insert the bushing into the hitch.
Warning—A seatpost that is positioned too high can damage the bicycle and can cause you to lose control and fall. Make sure the minimum insertion mark is inside the frame.
7. Slide the hitch and bushing onto the lead bicycle seatpost to the bottom edge of the marking tape, with the bushing positioned with its flange-side down (Figure 1).
8. Install the bolts in the hitch.
Apply a small amount of Wrench Force™ grease to the threads of the two 5 mm hex head bolts (Figure 2), insert through the holes in the front of the collar, and install the nuts.
9. Tighten the bolts evenly, just until it becomes difficult to rotate the hitch on the seatpost by hand.
10. Reinstall the seatpost.
If you are unfamiliar with seatpost installation, refer to Chapter 3 or consult your dealer.
Warning—failure to correctly attach the trailer-bike to the lead bicycle may cause separation or loss of control resulting in personal injury. Make sure the trailer-bike is securely attached to the lead bicycle by following these instructions carefully, or consult your dealer.
Figure 1:
Hitch bushing
Figure 2:
Trailer-bike hitch