Brownell TPU Speed Nocks

$7.50
(8 reviews) Write a Review
Brownell TPU Speed Nock System

Brownell TPU Speed Nocks are easy to install with a cotter pin. They lock tight on the serving & are constructed of a durable TPU rubber.  TPU or Thermoplastic Polyurethane centralizes the weights at approximately 20 grains each and centralizes the weight for performance.  The TPU's are a safer alternative to brass nok sets and will also increase arrow speed while lowering vibration & silencing string noise.  4 Per Pack.

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  • 5
    TPU Speed Nocks

    Posted by Matthew on Mar 28th 2019

    Bought a pack of these (4 in a pack) to give them a try. Weight is 20 gr each. I opted to only install 2 of 4 (one top / one bottom); chrono'd the bow before and after installation. Adding 2 TPUs dampened the string and did not change the speed. My conclusion is - I did not add enough weight to the string to gain speed; I added enough weight to offset the TPUs. The bow is shooting so well that I'm not going to add two more until time comes that I need to take the string off, re-tune, etc. Consider that a Zebra string comes with 7 x 6 gr brass nocks top and bottom. That's 42 gr top + 42 gr bottom not counting the shrink wrap, etc. Give you some idea how much weight needs to be added to the string to gain speed benefit.

  • 5
    Excellent product!

    Posted by Unknown on Sep 24th 2018

    Silences better than any other dampers on the market. Excellent design and function.

  • 5
    Tpu speed nocks

    Posted by Barry on Jul 24th 2018

    Thank you 60 for the great service and prompt response when the color I wanted was out of stock just got them put on but from the past they are a good product

  • 5
    Simple yet effective

    Posted by Jenny on May 26th 2018

    These were super easy to install and work great. The extra color is a plus to make my bowstring look even better.

  • 5
    great product

    Posted by Jeremy Kohler on May 22nd 2018

    One of the only products I will give 5 stars to enough said

  • 5
    nice color

    Posted by Fred C on May 22nd 2018

    I have the older I guess style color these ones looks transparent kinda looks like stain glass

  • 5
    works great

    Posted by Unknown on May 22nd 2018

    product is as advertised and preforms well. i will use this product on all my Bow’s

  • 5
    Nice silencer

    Posted by Jay Stevens on May 22nd 2018

    These string leeches might be small but they definitely get the job done. Hardly any noise at all comes from my Darton directly from the dealer but now this thing is in stealth mode! Poor deer never knew what happened.