Tern Mainstay Chain Guide

5 out of 5 based on 6 customer ratings
(6 customer reviews)

$ 12.00

In stock

Out of Stock - Email me when available

You will receive $ 0.60 Customer Rewards

  • Dampens chain bounce without sacrificing shifting performance
  • Made from lightweight, rugged fiber-reinforced nylon
  • Easy vertical and lateral adjustment
  • Use on single chainring Tern bikes such as Verge P9 & Link D8
  • Tern patented design
  • Dimensions: W 8 x L 7 x H 3.5 cm
  • Weight: 50 g / 1.8 oz
  • Color: Black
SKU: B.00003.0248.03.00 Categories: , , ,

If you could watch your chain, you’d see waves of energy literally bounce the chain as it moves up and down the cassette or when riding on rough roads. With the shorter chainstays of folding bikes, the waves just get amplified in size.

The Tern Mainstay chain guide eliminates chain drop for single chainring bikes without sacrificing shifting performance. Made from durable nylon, the Tern-patented guide dramatically enhances chain stability by reducing unwanted energy to ensure the chain stays on when shifting or riding rough roads.

6 reviews for Tern Mainstay Chain Guide

  1. 5 out of 5

    (verified owner):

    Great accessory. It has cured my chain coming off which was a frequent occurrence on my Tern P9.

  2. 5 out of 5

    (verified owner):

    Great invention! As I do quite a bit of quick shifting on my Tern Verge P9. Just a warning that the chain has to be broken and reconnected to install.

  3. 5 out of 5

    (verified owner):

    Hi everybody! Amazing small thing making a great job! Displaced an order on the 15th of July received on the 22nd the same month from Taiwan in Moscow with EMS! Well done! Thanks!

  4. 5 out of 5


    Good upgrade! It works better than my old Tern d8 chain guide.

  5. 5 out of 5

    (verified owner):

    Great little product.

  6. 5 out of 5

    (verified owner):

    Very nice product! Very fast shipping with EMS. Thanks

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