TranzX Jump Seat Dropper Seatpost (Black) (27.2mm) (390mm) (100mm) (Head Actuated Remote)

TranzX Jump Seat Dropper Seatpost (Black) (27.2mm) (390mm) (100mm)
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Price: $119.00

Diameter | Length | Travel:

  • 27.2mm | 390mm | 100mm
  • 30.9mm | 365mm | 100mm
  • 31.6mm | 365mm | 100mm

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The TranzX Jump Seat Dropper Seatpost is the easiest to install and the easiest to operate on the market. Just bolt up your favorite saddle in the simple one-bolt clamp and you're ready to go; no cables to fuss around with. Pull the lever under the saddle and use your body weight to drop the saddle; pull it again to return to full height or anywhere in between. Dirt jump and park riders can slam the seat for air time and raise it up to ride home without risking tangled cables or carrying tools. Commuters, cargo bike riders, and tandem stokers can use the Jump Seat for easy dismounts and to put their foot down flat at stops.


  • Easy installation, no cables or housing
  • Simple operation - just pull the lever and sit
  • Infinitely adjustable in range
  • Sealed air cartridge

Travel: 100mm
Seatpost Size: 27.2mm, 30.9mm, 31.6mm
Seat Collar to Center of Rails: 180mm
Full Insertion Length: 190mm
Min. Insertion Length: 65mm
Routing: N/A (Head Actuated)     
Color: Black
Weight: 615 - 623g

This product was added to our catalog on November 4, 2020

Verified Owner
Friday, Aug 27 2021 (4 weeks ago)
TranzX Jump Seat Dropper Seatpost (Black) (31.6mm) (365mm) (100mm)
Had it for almost a week now. So far so good. Super easy to use and install. It will add some weight to the bike, but not a big deal. I hope it last cause is one of my favorite parts of the bike right now.
Verified Owner
Thursday, Jan 28 2021 (8 months ago)
TranzX Jump Seat Dropper Seatpost (Black) (31.6mm) (365mm) (100mm)
As advertised. Good add on if you don’t want to snake cable. Have used the bike only 1 day since installing but could not be happier.
Verified Owner
Sunday, Jan 17 2021 (8 months ago)
TranzX Jump Seat Dropper Seatpost (Black) (27.2mm) (390mm) (100mm)
Happy with the product but need to return for a larger size diameter. I prior to ordering confirmed on the bicycle makers website the size tube for the specific size. Go figure I need a larger size. Not Nashbar’s error.