# Mtn bike spin out

**URL:** <https://forums.zwift.com/t/mtn-bike-spin-out/542012>\
**Category:** General Discussion\
**Created:** [March 10, 2021, 10:41pm UTC](https://forums.zwift.com/t/mtn-bike-spin-out/542012 "2021-03-10T22:41:08Z")\
**Posts on this page:** 1\
**Showing post:** 16

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**Author:** ![Paul\_Southworth](https://sea2.discourse-cdn.com/gozwift/user_avatar/forums.zwift.com/paul_southworth/32/538336_2.png) [@Paul\_Southworth](https://forums.zwift.com/u/Paul_Southworth)\
**Post date:** [July 31, 2023, 7:16pm UTC](https://forums.zwift.com/t/mtn-bike-spin-out/542012/16 "2023-07-31T19:16:17Z")

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> [@Sram 34T chainring.Is it big enough?](https://forums.zwift.com/t/sram-34t-chainring-is-it-big-enough/610013/2):
>
> @Roberto_Viola wrote an app called QZ that can sit in between the trainer and Zwift and allow you to manage the base level of resistance with virtual gears. [qzfitness.com](http://qzfitness.com) I think you’ll find that the genuine SRAM cassette will offer better shifting than using the Shimano compatible 12 speed cassett…

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