Rear Shock Adjustment
From Unofficial Zero Manual
- The Official Manual section on Rear Shock Adjustment illustrates how to measure preload and check sag.
- The official manual's description here is adequate and this can be done readily by hand on the right side of the bike at the top of the shock.
- The adjustment knob is at the bottom of the shock facing rear, as described in the manual, and can be worked by hand or with a wrench with a careful reach into that area.
- Spring Preload
- The official manual illustrates the collar and procedure for spring preload adjustment, but does not recommend a specific tool, and there are clearance issues in that area for tools.
- The adjuster sleeve diameter is 58mm (2.3").
- A Stockton spanner wrench was found to be suitable for the job if modified as follows (per 2017 DSR Showa rear shock spanner wrench):
- Grind the nose of the wrench to fit the notches.
- Bend the wrench a couple of degrees to clear the Sevcon motor controller fins.
- Obviously, a better solution is still worth seeking.
- A small suspension wrench / ER collet spanner size 30/32 can be use even with the lack of clearance