
TRETS
Adaptive trikes for kids: Happiness with handlebars
The TRETS is an infinitely adjustable trike for all kids between 3’3” and 5’3” in height (1–1.6 m). The poison-green speedster comes with a set of funky decals – kids can choose between “Wild Dinosaur” or “Pink Glam.”

Adaptive trike for freedom and fun
The TRETS has under-seat handlebars, which are safe and easy to use. They make young riders feel pretty cool – and honestly, they are! For kids who prefer above-seat steering, like on a bike, optional “highbars” are also available.

Cornering? Like on rails!
As a delta trike with a low center of gravity, the TRETS is extremely stable, which means that riders can get into the seat with no scary wobbling. The pedals with toe clips and straps, as well as elastic heel straps, guarantee good foot positioning and prevent slipping. All of this translates into excellent cornering stability.

Support with special needs
There’s a wide range of adaptive accessories for TRETS – including Pendulum Pedals for kids with severely limited mobility. And Crank Shorteners, which are perfect for legs of different lengths or for when the knees cannot be fully extended.
TRETS in detail
Frame / front boom
aluminum
Weight
43 lb
Max. load
220 lb
Safety harness
5-point
Height of rider
3’3” – 5’3”
Wheels
16" / 20"
Color
green / black
Frame | aluminum |
Total length | 60”– 70½” (152 – 179 cm), or 65”– 75½” (165 – 192 cm) when used as trailer |
Total width | 28¾” (73 cm) |
Total height | 26¾”– 30¾” (68 – 78 cm) |
Seat height | 13” – 17” (33 – 43 cm) |
Bottom bracket | 12½” (32 cm) |
Height of rider | 3’3”– 5’3” (1.00 – 1.60 m) |
Fork | aluminum |
Front boom | aluminum |
Max. load | 220 lb (100 kg), or 176 lb (80 kg) when used as trailer |
Weight | 43 lb (19.5 kg) |
Gear system | 8-speed Nexus gear hub / twist shifter |
Brake system | mechanical disc brakes / with children’s brake levers and parking-brake mechanism |
Wheels | front 16” / rear 20” / aluminum double-walled rims / SAPIM stainless-steel spokes / reflective spoke protectors on the rear wheels |
Fenders | SKS matte black |
Pedals | Children's Pedals with Toe Clips and Straps |
Crankset | 115 mm, 32 tooth |
Safety harness | HASE BIKES 5-point harness |
Flag | safety flag (non-telescoping) |
Lighting | lighting system with rechargeable battery / Spanninga Axendo headlight / Spanninga Elips taillight |
Color | jet black / green, high-gloss |
Equipment Highlights

01
Equipment
Highlights
Trailer mode
Remove the front wheel, attach the draw bar, and the trike is in trailer mode. Then it can be hitched to one of the parents’ bikes for long bike tours or for taking tired toddlers home from nursery school. Oh yeah, and there’s also a Guide Bar. All parents know why …

02
Five-point harness
Please stay seated: The five-point harness keeps the little ones in their seat – even when cornering at high speeds. Ideal for riders who are unable to hold themselves upright, for kids with the fidgets, and for anxious parents.

03
Stepless length adjustment
Thanks to its modular design, the TRETS can grow with the child and be easily adjusted to fit riders of all shapes and sizes. For the stepless length adjustment, all you have to do is open a lever and slide the seat into the appropriate position. Without tools and without having to shorten the chain!
Be it customized bike or top-seller model with selected accessories:
use the HASE BIKES-Configurator to plan your dream bike.