Mainstay Chain Guide Upgrades since it’s light and stuffs

since it’s light and stuffs down small

Lockstand Extensions

Mounts on the handlepost for accessibility

It’s the perfect upgrade for tall riders looking for the perfect fit

the saddle protector can be stowed away in a bag to save space or hidden under the saddle

Mainstay Chain Guide Upgrades since it’s light and stuffsIf you could watch your chain, youd 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. We spent 12 months modeling chain movement on different combinations of cassettes and chainrings and chainlines and developing a device to eliminate chain drops for all combinations. Thats new Tern Mainstay Chain Guide,