Recent content by Nuckingfuts

I apologize as I miss quoted, the Surron ultra bee battery spec is 74V/55Ah. None the less I follow your logic and thank you for the detailed write-up. Ive searched quite a bit and haven't been able to find any confirmed specs on the cells used or anyone who has torn down this battery case to...

First I want to say I appreciate the attention to syntax. Second, yes the battery is the OEM battery that came equipped with the bike up on original purchase and can only assume that the bike display and controller are calibrated for this battery. Battery has only ~36 miles of use spread across...

I may not have enough info to go on but I've got a 74V 55Ah battery for my Surron Ultra Bee. When it's 100% charged (according to the bike display and after charging) I get a voltmeter reading of 76.0VDC. As a second data point, when the battery is discharged to 45% I get a reading of 66.5VDC...

Not one bit! As a matter of fact I have about 100 miles of some pretty technical and very rocky riding and just got back from a set of rides in Moab. All I've done is properly torque (no loctite) the nut and it's been great!

Nice cafe build! I went a different direction with a hardtail build around my XS650 motor. I did do a cafe build back in 2015 around an XV750 though. I still own this one which I plan to hand down to my son. Always dig running into other bike builders! :bigthumb:

I sure have!! Half dozen rides over the last couple weeks, mostly in snow. I'm just floored by how much fun this thing is under these conditions. Regarding the battery case mount, I initially thought of using a two-part epoxy like JB weld but I was concerned about low temperature impact...

Snow is firming up nicely up in Truckee so I was able to get some more testing in. Added some fenders from Portland Design Works and they were very effective on the flats where I reached 18-20mph. I was concerned the rear fender would be a problem with my dropper post but never an issue! I did...

I appreciate the kind words! Off to find a doner bike for my wife next.

I'm still messing around with ideas for a motor support for added insurance while I'm out pounding the bike on single track rock gardens. For now I'm testing a simple bracket that bolts onto the front derailleur frame mount and is hidden nicely behind the chain ring. Maiden voyage of about 10...

Since I have plans to do quite a bit of winter riding with this bike I wanted to protect and insulate the battery from the cold elements in hopes to get the most out of each charge. I decided to install a triangle bag which will also help to clean up the look of the bike by hiding most of the...

One of my biggest concerns for this build was how to secure a 10 lb battery to the frame in a way that will stand up to the beating I'm gonna throw at it. Luckily this frame has three contact points on the down tube and an additional two mount points on the seat ube for bottle cages. If I make...

Shimming the motor just off the stays was pretty straightforward but because the bb on this bike is 122 mm I didn't have room for the locking nut. The cheap stamped tool was ok for test fitting the motor but proper torque down requires real tools. I couldn't find the right sized lock/spindle...

First time out of the shadows to post up my build that you all helped to make a reality, lots of great info to streamline these builds (thank you for that!). Took a 2022 Trek Farley and did the deed that you are all so familiar with and installed a BBSHD (unlocked from Johnny Nerdout....good...

Now that I've had a chance to get my head wrapped around all of the top cells and their specs (i.e. 25R, MJ1, 30Q, 35E, etc) I'm not so sure that the MJ1 will be a good fit. It has a higher internal resistance, much lower discharge c rate and one of the lowest discharge current ratings...

Ok my eyes are dried out from all the reading on batteries and I feel like I've just scratched the surface. Of all the info floating around here (hard data, experience and opinions) it's clear as mud on which battery type to chose for my application. I'm gathering that the 30Q sits somewhere...