I don't know how I missed this thread, but I will take a shot here.
X = 428mm
Let me start by saying this...I'm hoping your Pad X of 428 is to the back of the pad. I'm gonna add 50mm to that to get to pad center and make your Pad X 478. Now, this is super presumptuous but it kinda makes sense with your build (6'2" with 34" inseam) especially if you like to ride a bit cramped or maybe you ride shallow in seat angle - let me know, 'til then I'm going forward with 478 as the Pad X.
I've taken to prescribing BOTH the 2018 Speedmax and the 2019 Speedmax because...well, as I type this there is a 2018 Medium 9.0 SLX in stock* and I'm not sure if the next wave of bikes to arrive will be 2018s or 2019s. We're in a fun time right now so I'll keep working out both options to keep all options open for everybody.
So, on the 2018 Speedmax SLX you'd ride Medium* with the rise bar, short stem and one 60mm spacer + three 5mm spacers. You'd also need the TSP (Team Switch Plate) to help pull the pads back a bit more than stock, that TSP & the 60mm spacer, and the rise bar are all aftermarket items. You'd nearly fit a Large with the stock flat bar, short stem, one 60mm spacer + one 5mm spacer (still with TSP) but it puts your Pad X center at 484, that puts this presumed Pad X 6mm longer than you like, so there's a question - either way, when you refit if you wanna go lower there's room with both options.
On the 2019 Speedmax SLX you can only ride the Large and you can choose flat or rise bar and you'd still need the TSP to get back to the presumed Pad X of 478.
Let me know if I'm wrong about the Pad X, Ian
I will follow up, if that is alright after my next fit assessment. Thanks so much! Just so we are clear though, that 9.0 SLX you have in medium, that's an $11,000 bike, right? Or am I reading their site wrong? Again, Ian, thanks so much.
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