Good handling of a motorcycle at any speed will result in maximum tire mileage. Tires must be transposed at regular intervals for best performance and long life.

The larger the tire size and higher the average road speed, the more essential it is that wheels and tires be given proper attention. A tire kept in continuous solo motorcycle front end service long enough to allow tread to wear irregular and peaked, may cause high speed weave, especially if over-inflated.

At regular intervals of approximately 5000 miles or when a solo motorcycle develops handling irregularities at high speed, check the following list for possible causes:

1. Loose wheel axle nuts.

2. Excessive wheel hub bearing play.

3. Loosened spokes.

4. Rear wheel out of alignment with frame and front wheel.

5. Rims and tires out-of-true sideways (tire run-out should not be more than 3/64 in.).

6. Rims and tires out-of-round or eccentric with hub (tire run-out should not be more than 3/32 in.).

7. Irregular or peaked front tire tread wear. Determine mileage since tires were last transposed. If mileage is found to be 2500 or more, transpose front and rear wheels and tires even though irregular wear or peaking of front tread is not noticeable.

8. Tires over-inflated. Check "Tire Data," Section 1A. Do not over-inflate.

9. Tire and wheel unbalanced. Static balancing alone may be satisfactory if dynamic balancing facilities are not at hand, however both are recommended.

10. Steering head bearings loose. Correct adjustment and replace pitted or worn bearings and races. See Section 2F.

11. Shock absorber not functioning normally. Check possible causes. See "Forks," Section 2F.

12. Rear fork bearings loose. Check possible causes. See "Forks," Section 2F.

13. Heavy front end loading. Non-standard equipment on the front end such as heavy radio receivers, extra lighting equipment or luggage, tends to cause unstable handling. Extra equipment on the front end should be held down to a minimum.

In most every case, high speed handling faults are caused by one or more of the above conditions being present on the motorcycle. The possible exception will be the case where there is serious frame or fork misalignment.

Switching wheels and tires approximately every 5000 miles and inflating to recommended pressure are of major importance. In many cases, this attention alone applied to a solo motorcycle will remedy faulty handling at higher speeds.

It is advisable to rebalance wheels and tires, at least statically, whenever casing and/or tube is replaced. SERVICING WHEELS

Front and rear wheels may be removed as necessary for wheel or tire service. When removing a wheel, apply brake to hold drum securely while pulling wheel from drum. When detached from drums, Duo-Glide and Electra-Glide wheels are interchangeable. REMOVING FRONT WHEEL (Fig. 2C-1)

Block motorcycle under frame until front wheel is clear of ground. Disassemble in following order:

Remove the cotter pin (1), axle nut (2) and flat washer (3). Servi-Car wheel disassembly includes removing bushings (4); also remove the five wheel mounting socket screws (5), loosen the two slider cap nuts (7) and remove axle (6). Remove front wheel, leaving the brake drum in its place over the brake shoes.

When replacing the wheel, assemble in reverse order. Important: Clamping faces on wheel hub and brake drum must be clean so that wheel will be true and tight against brake drum when socket screws are tightened. Securely tighten wheel mounting socket screws (5) and axle nut (2), and then tighten the two slider cap nuts (7). This wiU insure correct alignment of fork sides.


Elevate motorcycle rear end with service stand, or suitable blocking under frame so rear wheel is off the ground. Remove two rear screws from fender support, and raise end of fender as shown in Fig. 2C-2. Remove the five socket screws (4) that secure wheel to brake drum. The socket screw wrench can be inserted only at the rear of axle; turn wheel to bring each screw to this position.

Remove axle nut (3) and axle nut lock washer (2). Remove axle (1) from brake drum side of motorcycle and then remove spacer (5) from between wheel hub and right axle clip. Apply rear brake and remove wheel.

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