13KGHT73 Tranzx Jump Seat Dropper Post – Dogs.Bike
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Tranzx Jump Seat Dropper Post

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30.9mm - 100mm 31.6mm - 100mm
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Inspiring Your Ride.  

The Jump Seat is the easiest to install and easiest to operate dropper post on the market — just bolt up your favorite saddle in the simple one-bolt clamp and go with no cables to fuss 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 foot down flat at stops.

Features at a glance

  • Easy installation, no cables or housing
  • Simple operation — just pull the lever and sit to adjust seat height
  • Infinitely adjustable — seat height can be set anywhere in range


  • Drop: 100mm
  • Diameter: 27.2 / 30.9 / 31.6mm
  • Routing: No cables
  • Weight: 623g – 27.2mm, 615g – 30.9/31.6mm
  • Warranty: 2-years
  • 15mm offset

Easy Returns & Exchanges Products not including supplements. You are entitled to an exchange or refund within 14 days of the delivery of your purchase. Please note that the product must be returned unused (for bikes, not ridden), unopened containers, in original packaging including all tags (this applies to bikes as well), the receipt will also be needed. In case of refund neither the original shipping cost nor the return shipping cost will be repaid. To return any product you must call or email our customer service reps to discuss the problem and to obtain a return authorization number(RMA). Easy Returns & Exchanges supplements. All unopened supplements purchased from us can be returned for a full refund or exchange (minus shipping costs) within 30 days of date of purchase. After 30 days, it is a case-by-case basis. For any damaged, missing or broken seal products, please contact us by email within 24 hours of delivery of the parcel. Do not dispose of packing materials before the matter is addressed. It is a requirement of the couriers.