- Echo's popular TR ISIS cranks.
- Forged from 6061 T6 aluminum making them strong and stiff.
- Large slot machined into the front of the cranks reduces weight.
- Standard 1.37" x 24tpi threads are compatible with all trials freewheels and threaded sprockets.
- A freewheel spacer is supplied in case you want to run them without a bashring.
- If a bashring is used, it must have a base width of 4mm.
- Compatible with all standard ISIS bottom brackets.
- Available in 160mm and 170mm.
- Anodized black with laser-etched Echo logos.