para quem estiver interessado já pode ter 10s nas vossas bikes:
Recon MTB 10 speeds set (cassette + shifters)
Transforms a standard MTB 9 speeds drivetrain into a 2x10 or 3x10s drivetrain. The kit includes : one aluminium cassette + on pair of twisters
- Compatible with Shimano rear derailleurs
- Compatible with standard 9 speeds MTB hubs
- Compatible with 9s or 10s chains
- Monobloc aluminium cassette, gold colour (163gr)
- Micrometric twisters (96gr without cables)
- cassette 11-12-14-16-18-21-24-28-32-36