Over the years, Bacchetta has used a variety of riser systems. This diagram compares the three different systems so you can make changes to your bike using the most current designs.
The most common change we see is switching from the original one-piece design to the current three-piece design. As the one-piece systems were all used on bikes with 1" steerer tubes, there are additional pieces needed to make this conversion. In addition to the riser kit, you will also need a 1 1/8"-1" shim and a 1 1/8" lower riser clamp.
If you are converting from a two-piece to a three-piece system, your steerer tube is 1 1/8" and no additional parts are needed.