Bafang BBS01 33mm BB locknut tools (x2!) — format, vendor?

[Andre Jute]

What are the two (2) different tools called that operate the 33mm nuts on the Bafang 8FUN BBS01 and -02? Where can I buy them?

The inner 33mm nut has four square indents. I fastened it relatively satisfactorily with a hooked wrench which has a swiveling C-head but you can get only a shorthandled tool in there before the frame of the bike interferes, so there is no great leverage and consequently nowhere near the required 35Nm on the nut.

The outer 33mm nut has many small half circle intrusions between flats about twice as long on its outside. Is this a standard with a name, or is it something thought up by Bafang? If so, who sells the tool for it? Mine is currently finger tight because I have zero tools that will hook onto it, and the famous scredriver and hammer will just mark a very visible, nicely finished and labeled nut.

If you can't direct me to the proper tool, please tell me what you used and how.

Thanks!

Here's a photo from a French board with the inner 33mm locknut on the right at the bottom and the outer locknut on the left.

 

[dusan]

Probably custom tools, I have them at home, works fine.
http://www.skladacikola.com/Sada-klicu-Bafang-Central-Drive-Keys,790.html

 

[lcrewse]

What are the two (2) different tools called that operate the 33mm nuts on the Bafang 8FUN BBS01 and -02? Where can I buy them?

The inner 33mm nut has four square indents. I fastened it relatively satisfactorily with a hooked wrench which has a swiveling C-head but you can get only a shorthandled tool in there before the frame of the bike interferes, so there is no great leverage and consequently nowhere near the required 35Nm on the nut.

The outer 33mm nut has many small half circle intrusions between flats about twice as long on its outside. Is this a standard with a name, or is it something thought up by Bafang? If so, who sells the tool for it? Mine is currently finger tight because I have zero tools that will hook onto it, and the famous scredriver and hammer will just mark a very visible, nicely finished and labeled nut.

If you can't direct me to the proper tool, please tell me what you used and how.

Thanks!

Here's a photo from a French board with the inner 33mm locknut on the right at the bottom and the outer locknut on the left.

Take a look at Lectric Cycles for the factory tools which are sold as a set(http://www.lectriccycles.com/dealer-tool-kit-for-e-rad-mid-drive/) or individually http://www.lectriccycles.com/accessories/

 

[tahustvedt]

This one does the job: http://www.ebay.com/itm/Convenient-Bike-Chain-Whip-Bottom-Bracket-Freewheel-Wrench-Repair-Remover-Tool-/331236325904?pt=LH_DefaultDomain_2&hash=item4d1f393a10

It's not amazing quality, but I use it on my Bafang. I removed the chain as it's just in the way. I use a soft hammer to tighten and loosen it.

 

[rscamp]

http://www.chainreactioncycles.com/ca/en/x-tools-pro-shimano-bb-wrench/rp-prod55935

http://www.parktool.com/product/fixed-gear-lockring-wrench-hcw-17 (Grind tip to clear motor housing and obtain sufficient stroke)

 

[speedmd]

Sometimes the right tools are not the pretty ones.:lol: Use Caution, torque values vary with GORILLA driving.

 

[Andre Jute]

Thank you, gentlemen. I knew you'd know!

 

[melodious]

http://www.amazon.com/Pedros-142724-Trixie-Fixie-Tool/dp/B001Q221GM

That's what I'm using. Seems to do the trick. :wink:
The bolt cover nut, I just use adjustable pliers. Leaves a mild mark, but so does dirt.

 

[Andre Jute]

I had several of the hooked C rings already in various kits. For the Hollowtech workalike I bought the X-Tools Pro Shimano BB Wrench from CRC http://www.chainreactioncycles.com/ie/en/x-tools-pro-shimano-bb-wrench/rp-prod55935, simply because it was available: and recommended. Both tools worked a treat, thanks, gentlemen, though I must say I wonder how one gets a torque setting off a spanner like this.