Customize as you like with rich option parts
When getting into control, setting for finishing to a more controllable car and performance improvement are great fun. Tamiya’s RC car has abundant parts for that purpose. (Japanese PDF)
On-road model
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TB-05 chassis
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TA 07 chassis
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TA 06 chassis
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TB-04 chassis
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TT-02 chassis
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F104 chassis
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RM-01 chassis
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M-07 CONCEPT
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M-05 chassis
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M-06 chassis
Offroad model
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TT-02B chassis
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DT-03 chassis
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MF-01X chassis
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G6-01 chassis
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GF-01 chassis
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WR-02 chassis
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CC-01 chassis
Do you have one of these for the XV-01 chassis?
The Tamiya RC perfect guides have some lists and hop up examples
https://tamiyablog.com/2017/12/details-and-even-more-photos-of-tamiya-63674-rc-perfect-guide-2018/