Do I have to change my hub when I change my cassette? I have a 7 speed cassette and I want it to be 9 speed. - Quora
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![maintenance - 7-speed MTB cassette on 8/9-speed wheel hub, where does spacer go? - Bicycles Stack Exchange maintenance - 7-speed MTB cassette on 8/9-speed wheel hub, where does spacer go? - Bicycles Stack Exchange](https://i.stack.imgur.com/wsWNs.jpg)
maintenance - 7-speed MTB cassette on 8/9-speed wheel hub, where does spacer go? - Bicycles Stack Exchange
7 Speed/8 Speed/9 Speed 13-32T,14-34T Freewheel cassette for Freewheel type hub use | Shopee Malaysia
![Which freehub body do I need? SRAM and Shimano 9, 10, 11 and 12-speed MTB setups explained | off-road.cc Which freehub body do I need? SRAM and Shimano 9, 10, 11 and 12-speed MTB setups explained | off-road.cc](https://off.road.cc/sites/default/files/styles/970x640/public/thumbnails/image/Which-freehub-do-i-need-xd-hg-micro-spline-9-10-11-12-speed-100.jpg?itok=81qePem4)
Which freehub body do I need? SRAM and Shimano 9, 10, 11 and 12-speed MTB setups explained | off-road.cc
![maintenance - 7-speed MTB cassette on 8/9-speed wheel hub, where does spacer go? - Bicycles Stack Exchange maintenance - 7-speed MTB cassette on 8/9-speed wheel hub, where does spacer go? - Bicycles Stack Exchange](https://i.stack.imgur.com/Ldg5o.png)