Long tail cargo bike balance is a true art. The key to keeping your ride balanced is to center the weight on the bike by having the heaviest cargo and passengers on the rear deck sitting closest to the rider.
A quick note about long tails and adapters. The recommendations here work for just about any kind of long tail cargo bike. For our Xtracycles, newer models require a Yepp adapter whereas older models required a specific deck. If you have a bike that is not an Xtracycle, just be sure to check with that bike’s manufacture to make sure you have all the needed parts to safely install your Yepp seat.
All that said, here are our recommendations for Yepp seat placement on the deck of long tails for ideal bike balance:
Situation #1: One child in a Yepp seat, no other children on the deck
Install the Yepp seat in the front position, closest to the rider. For an LT2 Xtracycle or Leap, you will need the front Yepp adapter for this set up.
Situation #2: One child in a Yepp seat, an older child or adult riding on the deck
Install the Yepp seat in the rear position so the heavier passenger is closest to the ride. You will need the rear Yepp adapter for this set up. For an LT2 Xtracycle or Leap, you will need the rear Yepp adapter for this set up.
Situation #3: Two children in Yepp seats
Have the heavier child ride in the Yepp seat closest to the rider. For an LT2 Xtracycle or Leap, you will need both the front and rear Yepp adapter for this set up.
Situation #4: Primarily ride with one child in a Yepp but sometimes need to carry an older child or adult as well
If you sometimes ride with just one child in a Yepp but might need to carry an older child or adult every now and again, we recommend having your deck be able to have a Yepp seat moved into either the front or rear position by installing both adapters. When that Yepp port is not in use, the hole and or adapter can be covered with a MagicCarpet and the deck will be comfortable enough to accommodate a passenger riding on top.
For legacy LT1 Xtracycles that are not compatible with the LT2 Yepp adapters – like 2014 model year EdgeRunners, FreeRadical kits, Radishes or Surly Big Dummies – please refer to our help doc, Yepp Seat Installation on a LT1 version 2 FlightDeck.