# ⚙ Schlumpf hubs produced again **URL:** https://unicyclist.com/t/schlumpf-hubs-produced-again/272307 **Category:** Unicycles and Equipment **Created:** [December 23, 2021, 10:57pm UTC](https://unicyclist.com/t/schlumpf-hubs-produced-again/272307 "2021-12-23T22:57:07Z") **Posts on this page:** 1 **Showing post:** 17
### Author: ![Eric\_aus\_Chemnitz](https://unicyclist.com/user_avatar/unicyclist.com/eric_aus_chemnitz/32/3757_2.png) [@Eric\_aus\_Chemnitz](https://unicyclist.com/u/Eric_aus_Chemnitz) #### Post date: [December 30, 2021, 8:24pm UTC](https://unicyclist.com/t/schlumpf-hubs-produced-again/272307/17 "2021-12-30T20:24:28Z")
> [@Maxence](#): > > You could also use a Qu-ax frame, whether it is a Qx-Series or an RGB model. This should work great. As far as I know, KH frames were and probably are the only ones that work plug and play with the generation 4 hubs (stop blocks). All others need modifications. I’m not sure how the geometry on Nimbus frames looks like, but Mad4one and QX require modifications. to fit a Schlumpf hub into a QX-Series frame, you need to make some serious modifications: > [@Schlumpf hubs: general discussion](https://unicyclist.com/t/schlumpf-hubs-general-discussion/108861/1783): > > Compatibility of Schlumpf hub with QX frames and d’Brake QX frame, Schlumpf hub and d’Brake is the setup I built. But before someone wants to build a similar setup here’s a little warning: QX frames and d’Brakes are not compatible to Schlumpf hubs, they have to be modified! As shown below, Schlumpf hubs need an inner bearing shoulder of maximum 3.1mm width and 2mm height (=(42-38)/2). The original bearing holders of the QX frames have a shoulder that is 5.5mm wide and 4.5mm high (d… Maybe RGB frames fit better, but i doubt they are plug and play without any modification. --- _[View the full topic](https://unicyclist.com/t/schlumpf-hubs-produced-again/272307)._