Skip to main content

Cassette Compatibility

The factory installed cassette is an 11 speed system compatible with Shimano® and SRAM® systems. The installation kit Tools symbol contains the blue tool and optional spacers (Installation Kit).

Compatible Cassette System

Freehub Body

Optional Spacers

8, 9, or 10 speed Shimano or SRAM

Included

40 mm x 1 mm

12 speed Shimano

Included

24 mm x 1 mm, 24 mm x 0.5 mm

12 speed SRAM

Not included1

Go to buy.garmin.com to purchase the Tacx® SRAM XD-R.

24 mm x 1 mm, 24 mm x 0.5 mm

12 speed mountain bike

Not included2

Go to buy.garmin.com to purchase the Tacx micro spline.

24 mm x 1 mm, 24 mm x 0.5 mm

Other

Not included3

Go to buy.garmin.com.

For more information, see the manufacturer's instructions provided with your cassette.

Replacing the Cassette

Before you replace the cassette, you must obtain a cassette lockring tool and a cassette pliers or chain whip. You should keep all of the trainer parts and installation kit items together (Installation Kit).

NOTICE

You must be familiar with bike tools and cassette maintenance, or you may damage the trainer. If you have never removed or installed a bike cassette before, Garmin® recommends you take the trainer to an experienced bike technician.

TIP: If you have multiple bikes with different cassette systems, it is easiest to leave the cassette on the freehub body and replace them together. You can use this graphic as a reference, knowing that each cassette variation has unique requirements.
Trainer exploded view with cassette and glyphs
  1. Open the installation kit Tools symbol.
  2. If you have a cassette that is compatible with the included freehub body, follow these steps:
    1. Use the cassette pliers or chain whip to hold the cassette Callout number 2 in place.
    2. Use a cassette lockring tool to turn the lockring Callout number 1 counter clockwise.

      This requires strength and leverage.

    3. Remove the cassette, leaving the freehub body Callout number 4 in place.
    4. Go to step 4.
  3. If you have a cassette that requires a different freehub body, follow these steps:
    1. Use the cassette pliers or chain whip to hold the cassette Callout number 2 in place.
    2. Use a cassette lockring tool to turn the lockring Callout number 1 counter clockwise.

      This requires strength and leverage.

    3. Use the blue tool Tools symbol to remove the locknut Callout number 3.
    4. Remove the cassette, lockring, and freehub body Callout number 4.

      You can keep all of these parts together in case you decide to switch to an 11 speed system.

    5. Install the new freehub body and the locknut.
    6. Go to step 4.
  4. Place the cassette on the freehub body, and attach the lockring.

    Some 9 or 10 speed cassettes may require an extra spacer Callout number 6 between the cassette and lockring. For more information, see the manufacturer's instructions.

  5. Before you tighten the lockring, check for clearance.

    Some 12 speed cassettes may require an extra spacer Callout number 7 between the trainer and the cassette.

  6. If the bike derailleur makes contact with the trainer in the largest cassette gear, follow these steps:
    1. Use the blue tool Tools symbol to remove the locknut Callout number 3.
    2. Remove the freehub body with the cassette attached.
    3. Remove the black spacer Callout number 5.
    4. Add one or two spacers.
    5. Install the black spacer, freehub body with cassette, and locknut.
    6. Tighten the locknut.

      You can hand tighten the locknut using the blue tool Tools symbol. When using a torque wrench, Garmin recommends a maximum torque of 6 N-m (4.4 lbf-ft.) for the locknut.

  7. Tighten the lockring.

    Garmin recommends a torque of 40 N-m (29.5 lbf-ft.) for the Tacx NEO 3M cassette. For any other cassette, see the manufacturer's instructions.

1 Assembly requires the blue tool.
2 Assembly requires the blue tool.
3 Assembly requires the blue tool.
GUID-20BEF28B-CD66-4AFB-91A3-D649D4EF8E23 v1
December 2023
© 2023 Garmin Ltd.