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J&P Cycles® Primary Drive Lock

Product may vary from photo(s).

Everyday Low Price: $49.99

Gold Club Price: What's This? The Gold Club is our premier membership program. For most items members receive 10% off every day, plus exclusive sales and benefits just for members. More Info $44.99

J&P Part: 9300021

Rating: Read Reviews


Instructions 9300021.PDF

J&P Cycles® Primary Drive Lock

• Black Delrin plastic tool wedges between the primary chain and motor sprocket

Product Specs

  • Manufacturer Part Number: 2234
  • Material: Delrin® Plastic
  • Sold in Units: Each


Note: This item is a universal/custom fit component, and does not have any direct standard/OEM model application. Some items may require modification and an advanced level of mechanical skill and/or knowledge for installation.

Customer Reviews

 lovtoroc Posted:

Cheaper an better than Harley

 LIOMOTO Posted:


 Walldo1 Posted:

Works like advertised

 fonc1 Posted:

Make life a lot easier, a must have when working on the primary very happy

 David Gore Posted:

as i had fugured.... good for the low torque but no good for any real use, so wasn't the $$ for me..... Posted:

I love this tool!!! It is very well made and works great!! I no longer fight with primary's when I'm working on my bikes :-) it was worth the purchase!!!'

 tscottzimmerman Posted:

Met my expectations.

 hughiedahl Posted:

works well, just a little pricey.

 eminor7 Posted:

Money well spent.


WORKS - what MORE can I say? Beats the pine 2" X 4" that I had been using ;-). A+! Should have spent the $$$$$ years ago.

 Bigdogn Posted:

Works better than a block of wood...

 brian21367 Posted:

Great product, fits well.

 hd78glide Posted:

works great!

 jarradbates Posted:

This product performs great!

 hwgreer Posted:

Handy little bugger!

 DonGrau Posted:

It says it is for "any primary" it really means any chain primary. It flexes into a belt and does not give you a good solid stop. A "jam bar" works better on belt drives.

 The Captain Posted:

Beats sticking a hammer handle in there!

 TiNeff Posted:

This is one of those "must-have" tools for anybody doing clutch/primary work. I bought this tool to help with an auto-tensioner install. Sure beats the "cram the rag" trick. I've even seen guys use screwdrivers jammed between the starter ring-gears! Don't do it! Why risk ruining your gears when you can buy this inexpensive tool? It's a no-brainer.

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