19 Tooth Gearbox Sprocket

(15 customer reviews)


TEC 19 tooth gearbox drive sprocket

This will drop revs and also save you fuel

“Like having a 6th gear”

If you are sick of looking for top gear when you are already there then this is for you.

We have both 520 and 525 size sprockets for the corresponding length chain.


Triumph models from 2000 up to 2012 are 525 chain size. Triumph changed the chain size to 520 on some bikes for the 2012 model year, so if ordering for a bike from this year or beyond, check the chain size.

You can check your chain sizes on the side links of the chain it will have either 520 or 525 stamped on it


15 reviews for 19 Tooth Gearbox Sprocket

  1. Perry J.

    Better mpg, no longer look for a gear that isn’t there, more relaxed fast cruising and no (noticeable) negative affect on accelleration. Fit this to your bike!

  2. Andrew R.

    Easy to fit to bike and bike goes great and the speedo seems to be spot on now having checked with sat nav.

  3. andy b.

    easy to fit and unbelievable improvement! if you do nothing else to your bike do this.

  4. Lee F.

    fitter a 19 tooth front sprocket to my Speedmaster,does what it should do.
    It drops roughly 250rpm when in fifth gear with no adverse effect on pulling away.
    The sprocket looks to me nicely made and was a good fit on the gearbox shaft.

  5. Alfie W.

    Hi good piece of kit, takes the revs down for you, so in turn saves you money. Easy to fit and well made. Would recommend.

  6. Mark H.

    Good modification better mpg no noticeible loss on exleration !

  7. irene s.

    Great part well engendered 100%

  8. Steve

    Easy to fit. 15 minutes on a paddock or centre stand, no special tools needed. No noticeable loss on acceleration but definitely more at top end. Bike seems much happier at 70.

  9. Will D.

    Good value and fits perfectly. Thanks TEC for good value well manufactured parts :thumbsup:

  10. clive r.

    great product

  11. GORDON C.

    V. Good

  12. Norman H.

    Realy well made not fitted yet

  13. Ray W.

    Easy fit and makes all the difference on the motorway commutes. Drops your revs by about 600.
    Best £13 spend in ages.

  14. William KELL (verified owner)

    Well manufactured gear sprocket. Excellent service and very fast delivery, Superb communication.

  15. Pete Kilshaw (verified owner)

    Good product that fits like a glove

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