Polisport Guppy, Frame

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Comfortable, easy to use, easy to adjust, and easy to love.

RATING: Exceptional

BEST FOR: Those looking for an amazing frame-mounted seat that also has a small place for storage.

MOUNT TYPE: Rear Frame







Mount Type

Rear Frame-mounted

Additional Mounting Info

Mounts to seat tube (must be clear of wires)

Inches Needed to Mount


Quick Release


Age Range

9 mo. to 22 kg.

Pros & Cons

  • Five-point harness
  • Gentle suspension
  • Recessed helmet pocket (for younger kids)
  • UV resistant plastic
  • Protective leg shields
  • Doesn’t mount to bikes with frames with thick tubes

Full Review

Strong, sturdy and sporty, the Polisport Guppy rear-mounted seat is the perfect seat for parents and kids on the go. With a five-point harness, a gentle suspension, a recessed helmet pocket (for younger kids), UV resistant plastics and protective leg shields, the Guppy is a great choice for a rear frame-mounted seat.  For this review, we tested out a rack-mounted seat, but besides the mounting systems, the seats are the same.

Buckle and Harness

The five-point (a rare find in bike seats) harness with a two-handed buckle on adjustable straps was by far our favorite feature of the seat. With the ability to adjust every strap on the harness, the Guppy was easily fitted to our testers. The shoulder straps were more difficult to adjust than the others, as the rubber sleeve prevented the slider from adjusting farther up the strap, but by simply tightening the bottom strap, the extra slack was quickly and easily removed.

Guppy Rack 3

Other Safety Features

Moving down the seat, large leg guards protect legs from the rear wheel while the feet are secured in the adjustable footrests. Much to our surprise, the footrest were extremely easy to adjust as they quickly pop in and out of the main seat. The slightly stretchy foot strap was also a favorite of ours.  Compared to fabric straps or more rigid plastic straps, the Guppy’s straps could be stretched to ensure a secure fit.

Another unique feature of the Guppy is its rear compartment that is very useful for holding smaller ideas such as diapers, wipes, keys and cell phones.

Guppy Rack 4

The Guppy also has a recessed helmet pocket to prevent a child’s head from being uncomfortably pushed forward during a ride. While the perfect position for our 12-month old tester in 18-month clothes, the pocket will likely be of little use to shorter or taller testers.  Lastly, the seat also comes with a safety strap that secures the seat to the seat post of the bike. While the strap is certainly not a fool-proof backup, having had a properly mounted bike seat fall off a rack before, knowing that there is a backup is comforting.

Guppy Rack 5

Additional details about the mounting and various features of the Guppy can be seen in Polisport’s video:

Bottom Line

The Polisport Guppy is one of our hands-down favorite rear-mounted bike seats.  Complete with both kid and parent-friendly options, we found it to be superior to several other rear seats we have tested.


FTC Disclosure: Affiliate links are included in this review.  No monetary compensation was provided for this review, however, the reviewed product was supplied by the manufacturer or distributor to help facilitate this review. All opinions and images are that of Two Wheeling Tots LLC.  All content and images are copyrighted and should not be used or replicated in any way. View our Terms of Use.

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