Hi all,
I'm from Paris France and new on this site. After a bad accident 5 years ago that let me disabled I recently purchased a Wilier cento Hy to be able to follow my friends and have fun. I read most of the posts and I noticed that some are discussing about their tuning on the assist levels. It raised me a question: What are the nominal output at 100% for each level (colour)? So I contacted Mahle and aked them. Surprise, they don't know! After a few messages I've been told that each bike manufacturer set-up the X35 with their own choice of curves.
I'm saying curves because the ouput is not linear (at least for Wilier) and depends on level AND speed. So I contacted Wilier and they provided me this graph that was really useful for me to set-up my assistance.
On the graph (for Europe) you can notice a few things:
- Verticaly you see the % of the power the X35 delivers (when at 100% on the app), horizontaly the speed in Km/h ; I guess it's another graph in the US.
You never get the full 250W as the red level (grey curve) caps to 90% max of power. i.e 225W ; orange gets you 125W max and green (blue curve) only 75W, I guess this is why it's called eco mode!
- You get the max output between 15-20km/h and 23, then it goes down again.
- When you use the app to decrease the % of assistance you change the whole curve of this level by moving it to the bottom of the graph.
Some conclusions for my personal use of the system:
- There's no point of lowering the green level as 75W are not much anyway
- The difference between orange and red curve is big, so I played on the red one.
- Talking about our % with people having a X35 with another bike brand doesn't make much sense as manufacturers probably have different settings meaning that 65% on the orange for a Wilier may give a different output on Orbea...etc.
I don't know if it's possible but as an evolution I'd like to have a fourth assist level (purple?) that one could tune at a certain % of power (maybe caped to X%) with a flat curve between 15 and 25 km/h. On long climbs that would help to manage efforts.
I'm very happy with my Wilier that weight 11,6kg complete with pedals, bottle cages... I could ride 110km with 1100m D+ and came back with 20% battery. I cannot make such distance anymore with my normal bike, so good investment.