Models:

Type 1:

10 x 135 mm caps

• Convertible to: 10 x 135 mm quick release
• Base Model: 10 x 135 mm thru-axle
• Hub Compatibility: 3.30, 3.30Ti
• Wheel Compatibility: ZTR wheels
• Manufacturer Number: ZH0112
• Contents: 1 pair of end caps

Type 2:

10 x 135 mm caps

• Convertible to: 10 x 135 mm thru-axle
• Base Model: 10 x 135 mm quick release
• Hub Compatibility: 3.30, 3.30Ti
• Wheel Compatibility: ZTR wheels
• Manufacturer Number: ZH0117
• Contents: 1 pair of end caps

Type 3:

12 x 135 mm caps

• Convertible to: 12 x 135 mm thru-axle
• Base Model: 12 x 142 thru-axle
• Hub Compatibility: 3.30, 3.30Ti
• Wheel Compatibility: ZTR wheels
• Manufacturer Number: ZH0083
• Contents: 1 pair of end caps

Type 4:

12 x 142 mm caps

• Convertible to: 12 x 142 mm thru-axle
• Base Model: 12 x 135 mm thru-axle
• Hub Compatibility: 3.30, 3.30Ti
• Wheel Compatibility: ZTR wheels
• Manufacturer Number: ZH0090
• Contents: 1 pair of end caps

Note from the manufacturer:

The conversion kits after Type 5 include, on top of the end caps, an axle, which give you more conversion options.

Type 5:

10 x 135 mm axle + caps

• Convertible to: 10 x 135 mm quick release
• Base Model: 12 x 142 mm thru-axle, 12 x 135 mm thru-axle, 10 x 135 mm thru-axle
• Hub Compatibility: 3.30, 3.30Ti
• Wheel Compatibility: ZTR wheels
• Manufacturer Number: ZH0112 + ZH0113
• Contents: 1 pair of end caps, 1 x axle

Type 6:

10 x 135 mm axle + caps

• Convertible to: 10 x 135 mm thru-axle
• Base Model: 12 x 142 mm thru-axle, 12 x 135 mm thru-axle, 10 x 135 mm quick release
• Hub Compatibility: 3.30, 3.30Ti
• Wheel Compatibility: ZTR wheels
• Manufacturer Number: ZH0117 + ZH0113
• Contents: 1 pair of end caps, 1 x axle

Type 7:

12 x 135 mm axle + caps

• Convertible to: 12 x 135 mm thru-axle
• Base Model: 12 x 142 mm thru-axle, 10 x 135 mm quick release, 10 x 135 mm thru-axle
• Hub Compatibility: 3.30, 3.30Ti
• Wheel Compatibility: ZTR wheels
• Manufacturer Number: ZH0083 + ZH0082
• Contents: 1 pair of end caps, 1 x axle

Type 8:

12 x 142 mm axle + caps

• Convertible to: 12 x 142 mm thru-axle
• Base Model: 12 x 135 mm thru-axle, 10 x 135 mm quick release, 10 x 135 mm thru-axle
• Hub Compatibility: 3.30, 3.30Ti
• Wheel Compatibility: ZTR wheels
• Manufacturer Number: ZH0090 + ZH0082
• Contents: 1 pair of end caps, 1 x axle

Type 9:

12 x 142 mm axle + caps

• Convertible to: 12 x 142 mm thru-axle
• Base Model: 10 x 135 mm quick release
• Hub Compatibility: 3.30RD (Road Disc), 3.30RD Ti (Road Disc) / not suitable for 3.30R, 3.30 MTB hubs, XD or Campagnolo freehubs
• Wheel Compatibility: ZTR wheels
• Manufacturer Number: ZH0352
• Contents: 1 pair of end caps, 1 x axle