Polisport Koolah 29

Pros / Cons
Pros
- Purpose-built for small frames and 29ers, where most rear seats cannot mount at all.
- Three-point harness and adjustable footrests grow with the child through the 9 kg-22 kg/19.8-48.5 lb range.
Cons
- Hard exclusions (carbon, square/triangular tubes, rear suspension) and an 80 mm clearance rule eliminate many bikes.
- Easy to confuse with the rack-mounted Koolah CFS, which is a different mounting system.
Product Facts
- Mount Type
- Frame mount
- Mount Position
- Rear-mounted
- Product page
- Open product page
- Price/Buy
- Check price at Amazon
Polisport Koolah 29 is the frame-mounted Koolah variant for a 9 kg-22 kg/19.8-48.5 lb child when a small frame or 29er leaves the required mounting space. The dedicated support fits a compatible 28–40 mm round or oval tube and needs 80 mm of clear frame length. That specificity is useful, but it makes pre-buy checks non-negotiable. Exclude carbon, square or triangular frames, rear-suspension bikes and tubes outside the stated range. Confirm wheel, heel and control clearance from the manual before carrying a child; this model must not be confused with the separate rack-mounted Koolah CFS.