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a little bit of play between the bottom bracket and the BBS-02 crank box that inserts into the bottom bracket Hmm, Interesting possibility. Unfortunately, that's a bit more complicated for a DIY with my mechanical abilities (or lack thereof). This weekend I'll try tightening crank arms and...

Very helpful suggestions! I'll give these a try and let you know how they work. Thanks!

I've had my 500W 8-Fun BBS-02 on my Surly Ogre for almost a year, and I have had no issues ... until now. Within the last week or so, I've noticed a little "creak" coming from the front crank every time I pedal under load. It's not super loud, but it's noticeable. It's not the chain, which...

More upright riding position and swept back handlebars have eliminated the problem for me.

Congratulations on a very nice build. Great commuter setup. J.

Thanks for the feedback, everybody. It would appear to be a normal part of the Bafang controller programming. Court, I agree with your observation about the watt output, and sometimes it is too minor to notice, but there are times when the fluctuation of power is noticeable in the pedals (to...

Okay, so after 6 months I'm generally loving my Bafang outfitted Surly Ogre. It has been reliable and stout, flattening hills and turning them into opportunities to ride rather than something to be dreaded. I can tow my fully loaded cargo trailer with no problem. Battery life has been very...

I just test rode a Trek XM 700 last weekend, and I am very impressed with this bike. For commuting up steep hills (which is what I'd primarily use it for) the Bosch mid drive is extremely smooth. The riding position felt comfortable and the bike felt solid, but not heavy. The bike has a...

Just curious Sonomajazz, can you share a little more detail on what happened? Were you going up the hill in a high gear, or using throttle mode when it started making noise? I've heard from someone who works on them in So.Cal that it's best to use a low gear ratio when hill-climbing with the...

The Surly cargo trailers use the same hitch system as the one that is used by the Bob Yak trailer. Bob makes a skewer for the rear hub that fits most bikes, but the Surly Ogre (and the Surly Troll) have eyelets for the trailer hitch bolts built into the rear triangle of the frame for greater...

Hi Go-Coo, To address your questions: The Bafang housing sits just below the down tube, but not right against it. I hadn't really noticed, to tell the truth. No problems, and it hasn't worked its way closer after about 100 miles of riding. I haven't felt the need to put an extra chain in...

George, I've learned quite a bit from the EBR community, for sure. Lots of great information and ideas and a very welcoming environment. Nobody tries to make anyone else feel "stupid" for asking questions. I mostly invested in this as a hill-climbing commuter/errand runner/grocery getter...

Thanks George S. Here's the photo.

After a long wait, my Surly Ogre BBS-02 build is finally done (well, almost. I'm still tinkering with a few minor things)! I took it out for a couple of short test rides today on some hills that usually kick my butt, and I'm definitely happy with the result! The Bafang really smooths out the...

Gus, I'm going to try the 44-tooth Bafang chainring with the stock 11-36 cassette for a while and see how that works for me. I've got steep hills around my house, creaky knees, and I'd like to pull a small cargo trailer from time to time. We'll see how it goes. I'm researching the viability...

Thanks for the information, Hong. This is very useful.

I'm impatiently waiting for Surly to deliver my Ogre so I can complete my BBS-02 build. I ordered the 44-tooth chainring available from EM3EV (the smallest they sell) because I have a lot of steep hills in my area. I noticed Court's recent review of the BME Shadow, in which he says: A...

LouisQ: I would love to see a review of the gear sensor after you've had a chance to test it for a while.

You might want to consider modifying a pannier on your rear rack to hold your battery. You could run the wires from the pannier down the seat tube to the motor.

Hear, hear, George!