Just got an older used Crystalyte 4012/409 dual speed rear hub and as this is my first hub-based build I have some questions.
First some expected background:
I'm 5'9", 30" inseam and 200lb and generally carry 25lb backpack with computer and stuff. My primary goal is my daily commute which is 1.6 miles up 500ft with 8 and 10% grades. Enjoy pedaling but don't want to sweat on way to work. Range is secondary (1-2 times a month I'll take it on longer trips, and often will make 2 trips in the same day). Speed is a distance tertiary goal.
Will be running with 48v 20ah (headway) which I got the in deal for the hub. Trying to keep costs low.
So first question.. anyone with much experience on these want to share any experience? (searching found almost nothing.. I did find a few old 408/4012 thread)
Second.. the motor simulator at http://www.ebikes.ca/tools/simulator.html
does not have any settings for either 409 or 4012.. How different are these from 408 and 4011 (which they have)?
The motor is laced in a 24" rear wheel, so my choices seem to be: get a 24" bike, get 26" bike and ride in a 26/24 configuration, get a 26" bike and and new 24" front to ride 24/24 or lace it into a 26" wheel.
: which would you recommend and why?
Been reading a bit at https://endless-sphere.com/forums/viewt ... =2&t=64324
) so I think I could do the lacing but it also seem like a lot of work/skill, especially when there are recommends to practice on a junk wheel first. If I go that way, the spoke calculator (http://www.ebikes.ca/tools/spoke-calc.html
) shows two Cylyte 40x.. one with an offset and one without. How do I tell which I have?
Also the 24" would have slightly better hill climbing, so is added hill ability a reason to stay@24?
If using a 26" bike with 24" wheels do I run into problems with brakes?
The controller is probably circa 200X, Its 36/48v and I'm from my reading on other threads I'm guessing 20a. ( the guy I bought it from worked in the e-bike biz and said it has the older MOSFETs if that means anything). Should I upgrade it? I was thinking of adding a pedal sensor but am not sure how those connect or if I can add them to this controller/throttle. (There is a 3 pin connector not attached to anything, hall sensor connector and battery the dual motor connectors (not show). No other connectors/ports to which I could attach?
Also the owner had lost the key.. so I presume if I just open up the controller I can bypass it, correct? (I wanted to open it just to ensure its clean).
The owner also threw in a second case with a brake disk attached. Said I could replace it but that it is again and needs a torque wrench.. Anyone having done this want to comment. I presume disk brakes would make using a 26" frame easier (but those bikes are more expensive..)
Finally questions.. I'll be mounting the headway pack (16s2p) somewhere semi-permanent, and am leaning in the triangle. But that often means no or very minimal suspension. With the added weight is which is better rear with full suspension or triangle mounting?