Resolution:
I'm happy to report that after several weeks of effort and many bikeless days and trips to the LBS, Robert Bosch's yacht came close enough to shore that they were able to airlift a notary out to him and he personally authorized the repair of this manufacturing defect (I assume)...
Generally every bike in this category will come stock with a stem that's 50mm long and 0-deg rise, fitted to a 1-1/4" steerer tube and 31.8mm bar. So if you get a replacement with a high angle (e.g. 35deg) but keep the length short, you can use the stem to gain an inch or so of height, which is...
Consider some higher rise handlebars for whatever you choose. Bikes in this category can climb/descend some pretty amazing inclines and the included wide, flat, straight handlebars help make this possible - at the expense of comfort. Higher rise and higher backsweep bars are generally more...
Don't worry about the number of gears, the motor greatly reduces the need for granny gears and it's pointless to try to pedal beyond the 20mph limit so you don't need much of a top gear either. 10 speeds is fine and if you find that you need a lower *or* higher gear (not both) you can simply...
Seat tube angles are not so critical since you can adjust the seat fore/aft by some amount and change the handlebars fore/aft by any amount. Your seating position is mostly determined by the handlebar height and reach, both of which are determined by a very cheap (<$40) stem which is simple to...
That Trek Powerfly 4/4 is a great deal and is the only one of the bunch with Bosch's latest gen 4.5(?) "Smart System". This gets you the newest refinements and will keep you in the current/recent tech range for as long as possible. Trek has mastered frame geometry as well as the rest of them and...
Ah, I see what you mean about the carbon hole diameter - there is a step change to a smaller diameter in the insert region. I suspect they molded the large outer diameter so that it would look nice when painted, and it might even be hollow or foam-core in that region to save weight. But the...
I don't think there was any carbon there. It would be difficult to mold with that complexity, the sharp details would be weak, and it's not good practice to allow bolt heads to contact carbon. Plus, it would require a very large carbon feature to be reasonably structural so the path of...
Thanks @MasterDabber for confirming that your Cube goes from 84.1" to 93", indicating a factory value of 88.5" or 28.2" diameter. This seems really high for a 27.5" wheel which should generally be less than 27.0" (84.8") in practice so I'm not surprised that your speedometer is inaccurate. I...
Looks fine to me. A little bit of surface cracking around a discontinuity like that in a very thick carbon section is not uncommon or concerning.
I'm curious to see a pic of the insert but I'm guessing it's basically a thick stepped stainless steel washer shaped like this:
If so, it's...
Hmm... 88.5" definitely sounds like a 29" tire. Are you saying that the user setting is currently at 88.5" or that the total available adjustment range is 84"-93"?
I'm looking for the latter - the max/min allowable settings, the median of which is the hard-coded factory configuration.
That's precisely correct Rusty, and exactly the method I used to measure mine, but the question is:
Does Bosch set all Smart motors to 29" and/or is it possible to change them?
Bosch doesn't know the answer so I'm hoping someone here has a 27.5" that is *not* factory programmed as 29" to...
The phone app lets you adjust the circumference +/-5% so you can simply average the max/min allowable values to determine the factory programmed circumference.
I ask because my 27.5" came factory programmed as 29" (2280mm/89.8" circumference) and Bosch doesn't know if/how to fix it. I'm...