Hi all,
I've posted this elsewhere but I'll add it to this conversation too:
I updated the EP801-RS in my 2025
Orbea Rise LT H10 to the new 4.6.0 firmware last week via the E-Tube app and the bike felt noticeably sluggish and lacked its usual punch and power compared to the previous ride. Trail mode felt like Eco. It almost feels like the update has overwritten the
Orbea RS tune.
Assuming the update had just reset my custom profile (de-tuned for range/battery life) I restored the default profile and paired with the bike, then back to my custom profile however it made no difference. I ended up increasing the Assist Character by 2 notches for both Eco and Trail (I left Boost alone since I rarely use it) which brought the power and feel back to what I was used to, but the obvious downside is that it is now using noticeably more battery on my usual loop (10-15%).
I posted in the
Shimano EP Owners Facebook group and quite a few people replied that they had a similar experience since the update.
I've already contacted Madison (the UK distributor), and they are escalating the query directly to
Shimano. I've yet to receive any further replies but I expect
Shimano are busy with the upcoming EP810. I also contacted
Orbea however they have said they have no input into
Shimano updates.
Anyway, it's very annoying as it no longer feels like my bike
