seat back adjuster moves

[seemark]

I am prepping a Quest 3.0 for a fellow bentrider, so the machine is new to me. I am a mechanic so do have some aptitude for these things.

The seat back does not keep it's adjustment in the most reclined setting, (first hole closest to seat). With everything tightened up the seatback pushes the adjustment bar ends down, resulting in a further recline. In checking pictures of the seatback adjusting bars on this forum the setup is correct.

Anyone else have this problem? If so, how did you remedy it. I can make a set of braces for triangulation, but thought I'd check here first.

Thanks in advance.

 

[Eric Winn]

To get even more recline you

To get even more recline you can take the rack off and flip the seat post around but you really need a headrest at that point.

You also need really long arms to reach the handlebars - or change out the handlebars in some way so you can reach them comfortably.

-Eric

 

[low wong]

14 months ago I just have my

14 months ago I just have my first recumbent , Quest 2.0 451. I set up with low BB, most upright seat angle, then learn how to cycling like a beginner. After 2400km cycling, today my Quest 451 set up with long chain stay, and I enjoy more recline seat angle.

 

[Trekster]

Seat Back Adjustment

Yes, I have experienced the same problem with my Quest 3.0.

First, the placement of the seat pan on the frame is "counterintuitive". That is, in an attempt to gain more knee clearance, and a more reclined riding position, logically it would seem the seat pan should be placed at the set of mounting holes where it is farthest back of the steering tube and handlebars. In fact, that position puts the seat pan back in the most upright position and results in the torso being placed too close to the handlebars. This scrunched position also causes the arms to be bent too much and restricts their natural movement.

On the Quest 3.0, the torso is not supposed to be laid back as much as on the Silvio or Vendetta, but neither is it be placed in too much of an upright position. Thus, it was my experience the seat pan should NOT be mounted at the rear-most position, but rather should be mounted so the front tip of the seat pan is actually closer to the headset. This allows the seat pan back to be in a more reclining position and thus eliminates the scrunched arms and a torso position that is more laid back. At the same time, this causes a pelvic tilt that gives the knees more clearance under the handlebars.

I also found the optimum position of the two seat back supporting brackets, to be extending back from the seat back, at a right angle from the back (perpendicular). If they are angled either up or down, and not perpendicular to the back, they WILL be prone to moving and changing the seat tilt. (At least that was my experience) There are three holes in these brackets where they can be positioned and attached to the black adjustable downtube. Choosing the proper set of holes allows for the desired amount of recline in the seat back.

Also, be very certain the black adjustable downtube is inserted into the frame a minimum of 2 inches (more is better), and that the quick-release bracket is VERY tight.

Hope this helps.