Electric Bike Outfitters Mountaineer Mid Drive Kit Video Review – $1.6k Ebike

https://electricbikereview.com/electric-bike-outfitters/mountaineer-mid-drive-kit/ The Electric Bike Outfitters Mountaineer Mid Drive Kit is an efficient, compact, and relatively lightweight, mid-drive electric bike kit that’s compatible with 68 mm to 73 mm bottom bracket sizes, works with downtube or rear-rack battery. Responsive torque sensing pedal assist as well as throttle mode (choose from half-grip, full-grip, or trigger throttle), get help starting from zero and ride however you want. Top speed is adjustable, you can turn off the display backlighting, there’s a full-sized USB port built into the display panel and it uses a remote button pad for easier access while steering. No shift detection, so it could wear your chain, sprockets, and derailleur out a bit faster if you aren’t easing off as you change gears, not as powerful or fast as the specs would suggest.


polok890 says:

if the battery was good, then this is the biggest piece of junk you could get. laughable

D Danilo says:

I can see this kit for someone who has a bike they’ve really loved, and now wants some help with the work. It’s a narrow niche in a growing market. Most people will probably still choose a purpose-built e-bike. Great review of an interesting product!

stanley cartwright says:

I have a bewo mid drive kit from only 1 uk supplier but it seems ok for a 250W. I don’t use the throttle control unless pedalling as it illegal maybe in uk…vague rules.
The controller has setting for top speed limit and motor cut-out current to 30 amp but true- it need a run up and gear change to do 20 mph on the flat with a 29er. No big 500W as in US.

daytriker says:

I honestly don’t think this kit is the 350 watt model. It’s performance seems more inline with the 250 watt model. Also the way you are using it, is not to the motors best advantage & I am surprised you didn’t already destroy the sacrificial Blue Gear unless it has already been changed out. Check out another version & install of this motor Court & I think you will see that there is something not right in the way this unit is performing.

Henrik Agnemark says:

Nice to have both torque sensor and throttle. Overall a excellent review as always, keep on the good work.
Best regards from Sweden.

djwestman says:


HackHunter1835 says:

You were very “kind” in this review. Would like to know how you really felt about that kit. $1600? Ummm I dont think so. How many people will buy that over a Rad?

11Daniel2k says:

This is simply a rebranded Tongsheng TDZ2

Pure Water Window Cleaning says:

Sweet mid-drive! Great way to get the most power out of your gears.

ArthurDentZaphodBeeb says:

Don’t get it. Cheaper to buy purpose-built ebike than waste time/money slapping these surprisingly expensive and poorly performing kits on an existing bike.


I really like the torque sensing mid drive motors. It truly gives you that superhuman feel. The best of both worlds in my opinion. Thanks for this one Court.


At 10:20, the acceleration is really disappointing. My Sondors thin with belt drive hits 20 mph on throttle alone very quickly on a flat road.

Dreamer 111 says:

Who in their right mind would choose this kit over a complete base model Haibike?
For the same price.

Gary Bryan says:

Seems like someone just getting into ebikes the kit will be a disappoint.

Michael Sprinzeles says:

Nice little kit…for less than 1/2 the price, perhaps. On Ali Baba the 48 volt 750 watt version of this rebranded Tongsheng sells for less than $400 and a decent battery can be had for around the same price (even less if you don’t need high amp hours).
My 1k watt (sustained) BBSHD with a 52 volt 17.5 amp hour triangle battery & bag cost about the same and came with a gear sensor, an offset narrow wide chain ring, & a beautiful color display. (Hooray for LunaCycles).
Mid-drives may require more work to install but leave the bike easier to work on than hub motors!!!

Bob Wardrop says:

My BBSHD with a Lekkie chainring and 28ah battery cost $1450 shipped. I just cant see any way this makes sense for the price.

stanley cartwright says:

Exellent review as usual. There’s always a middle man, even a kit but when it goes wrong if you’re not a person who can fix 3 phasecontrollers or get motor/gear box spares, then after sales is important. Or take your luck from China. …which is cheap if it works…but spares?

dmitry manzano says:

I love my BBHD, don’t know a better motor yet.

v1nce n7 says:

If you want to buy this on the cheap from Aliexpress, this kit original brand name is TONGSHENG TSDZ2.

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