TranzX Jump Seat Dropper Seatpost (Black) (31.6mm) (365mm) (100mm) (Head Actuated Remote)

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TranzX Jump Seat Dropper Seatpost (Black) (31.6mm) (365mm) (100mm)
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Price: $95.99
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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 September 9, 2020

Ralph Schaeffer
Verified Owner
Monday, Oct 4 2021 (about 2 years ago)
TranzX Jump Seat Dropper Seatpost (Black) (27.2mm) (390mm) (100mm)
Overall works well. What didn't work for me was the length, it was too long and would not insert far enough for my needs. Nashbar was great at understanding and taking it back. Timely refund.
Esteban Diaz
Verified Owner
Wednesday, Sep 29 2021 (about 2 years ago)
TranzX Jump Seat Dropper Seatpost (Black) (27.2mm) (390mm) (100mm)
Seems to be good quality and it works great. I was surprised at how smoothly it slides down and how firmly it locks up.
Todd Kristofferson
Verified Owner
Thursday, Jan 28 2021 (about 3 years 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.
Todd Kristofferson
Verified Owner
Sunday, Jan 17 2021 (about 3 years 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.