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LUNA Wrench BBSHD and BBS02 Mid Drive Installation Tool

Calculated at checkout

Product Description

  • Makes Installation and removal of BBS02 and BBSHD a snap
  • Designed by Luna 
  • Lovingly CNC Made in California
  • Hand Polished by Luna Guys
  • Stainless Steel 
  • Fits the inner and outer rings of the BBSHD and BBS02
  • See product images for dimensions


Luna did their own unique design on the archaic Bafang Tool Kit to make it more affordable and more usable.   The Bafang installation kit retailed for over $100 (we sold it for $65) and this tool we think is better at under $30.

Not only that because of its thin no-nonsense design, this tool is cheap and easy to ship in a flat rate envelope, making it more affordable especially for our international customers.  

The only hard part about the Bafang BBSHD or BBS02 installation is you need a special wrench to install them.  This tool has been custom machined out of stainless steel  to make installing and tightening the inner and outer rings on the BBS02 and BBSHD easy.  If you are an ebike shop you will probably want these tools so you won't have to risk scratching the paint on the units when installing them

Product Reviews

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Showing reviews 1-20 of 47 | Next

  1. helpfull

    Posted by chris on Oct 10th 2017

    didn`t order it with my first order ( BBS02). Get it this time and it help to install the BBHD on my bike. have to forceto put it on the outer lockring and so damage it a bit. However the tools have a perfect fit on my original shimano lockring.

  2. Great to have proper tool

    Posted by Gerry on Sep 23rd 2017

    helped make my build easyer

  3. helpful wrench

    Posted by john n karlik on Sep 23rd 2017

    i have changed out several bafang motors using a large pair of parallel gripping pliers. this will work but will mar the finish of the parts grabbed. i used the luna wrench with no trouble. when i picked it up i thought that it was not adequate to the job, it is made out of aluminium and felt a bit flimsy. this actually came in handy as i needed to offset the wench about 15 degrees and it bent with no resistance. this tool will work to remove and install the collar nuts used by bafang, no issue with having enough beef for the job.

  4. Very handy!

    Posted by Nick on Sep 11th 2017

    This tool helps install and removal go a lot faster. It feels like you can get a lot more torque on the lockring without marring it. It's worth having if you plan on tinkering with your rig.

  5. Did not get it in time...

    Posted by Unknown on Sep 3rd 2017

    When placing the order for my Bafang kit I accidentally forgot to include the wrench, I immediately placed an additional order for the wrench with in 5 minutes, and frustratingly swallowed the additional shipping. No confirmation email came and I wondered if it had just been added to kit. Maybe I should have tried to call Luna Cycle to clear this up and see if wrench could be included with kit order BUT every indication from website is 'don't bother us unless it is really important' Kit came a couple of weeks ago and I love it. Wasn't going to wait around for the wrench to install it. Hit the lock nut on with a hammer and screwdriver, slipped once and messed up the threads (don't be over zealous if using this method) cleaned them up a bit with a utility knife and after a bit of struggling got the jam nut on. I am being asked to review the wrench which I wish I were to have had 2 weeks ago. Funny thing is, it still has not arrived...hence my 2 star rating is based not on the product as I was forced to give stars in order to air my punctuality gieivance ..I am sure it will work like a charm and I look forward to using it to torque down lock nut to appropriate level...

  6. Not the Best

    Posted by Unknown on Aug 21st 2017

    Instead of waisting time cutting out "luna" cut out a 1/2 inch square in both ends of the handle so a torque wrench can be applied and I believe one could actually tighten the lock nut with it. I purchased mine "at a discount" with my bbshd for $20, I'm afraid to ask how much this peice of metal costs at full price. Very minor disappointment though considering I bought nearly $1700 worth of products and my only compliant is a $20 wrench.

  7. Worked a couple times, then bent

    Posted by Unknown on Aug 4th 2017

    I managed to bend the outside ring side into an oval when installing the inside ring. It's probably good for one or two uses, but if you're going to being doing maintenance on your bike (and let's face it, you are), it might be best to get the better tool. I just purchased the better tool here. Spend the extra money up front.

  8. Tool

    Posted by Gunnar on Aug 1st 2017

    Works good

  9. works just fine

    Posted by rezdog on Jul 25th 2017

    tightened up those odd sized rings just fine. if i made a living doing this i might opt for the heavier duty tool.

  10. Better Than Expected

    Posted by Steven E Braun on Jul 21st 2017

    Although it is a bit difficult to really crank down on this wrench and you can't apply the proper torque value, for the price, it is solid and you can hammer it with a rubber mallet to get things tight. It works!

  11. Made installation a breeze!

    Posted by Chris on Jun 7th 2017

    I bought my first mid drive, a BBS02, and had it installed within 20 minutes with the aid of this wrench, some experience with ebikes, and a set of one to three piece crank adapters.

    If there was an option for an open-ended wrench to tighten the nut once the pedals are mounted to the cranks it'd be perfect.

  12. Excellent

    Posted by Unknown on May 25th 2017

    Solid tool

  13. Would have been lost without it.

    Posted by Josiah on May 18th 2017

    This tool made the install and multiple adjustments I had to make a complete breeze. I'm so happy I got this with the kit.

  14. gets the job done

    Posted by Unknown on May 17th 2017

    it is not a well finished tool, but it gets the job done, and that's what counts.

  15. Handy tool

    Posted by Bob on May 16th 2017

    Nicely made tool. You could add a 1/2" square hole 1/2" from the spanner end for use of a 1/2" drive torque wrench and a 3/8" square hole 1/2" from the lock nut end for a 3/8" torque wrench. Using a torque wrench shows more class than using a hammer.

  16. Perfect

    Posted by Unknown on Apr 23rd 2017

    It is very hard to get this nut tight enough with out this wrench .

  17. Works as advertised........rough finish

    Posted by Scott on Apr 6th 2017

    Works as promised and tightens my bbs02 but perfectly. A work of art..... sort of.... the finish is rough with jagged edges and burn marks. 20 bucks I guess it's worth it.

  18. Highly recommended

    Posted by Dennis on Feb 28th 2017

    This tool is nicely made and seems like a necessity to tighten the lock ring for the motor. Buy it with the kit for a discount.

  19. nice tool

    Posted by jill vaccaro on Feb 17th 2017

    high quality..good addition to your tool kit

  20. The 4 point side needs to have offset , so if you flop it , you get more combination

    Posted by scott M on Feb 12th 2017

    The tool bottom out on frame and could not go back to the next cog, if it was off set you could flip the wrench to get more combination.

Showing reviews 1-20 of 47 | Next