*Starting Price

We developed the new TRETS with the aim of offering our youngest riders all the flexibility of our TRIGO

The newest trike from HASE BIKES is a trike for the youngest riders. To be exact: an infinitely adjustable trike for all kids between 3’3″ and 5’3″ in height (1-1.6m). The new TRETS has easy-to-use under-seat handlebars. They make young riders feel pretty cool – and honestly, they are! Those who think above-seat handlebars are even cooler can order them as an option.

And now the wow factor: if the TRETS’ poison-green finish wasn’t eye-catching enough, there’s also a set of funky stickers! Kids can choose between wild dinosaur or pink “glam.” Neither is meant for girls or boys only – everyone should simply choose the stickers they like most!

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…

Please stay seated: the three-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.

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. All without tools and without having to shorten the chain!


  • Exceptional safety and stability 
  • Ideal for children with neuromuscular disorders, such as cerebral palsy or muscular dystrophy, or with restricted movement, e.g. associated with spasticity, paraplegia, or dysmelia
  • easy adjustment with ergonomic settings
  • better handling than the predecessor model
  • more weight on the front wheel
  • lower bar
  • under-seat handlebars (retrofittable with above-seat handlebars)
  • the seat height is adjustable by 4 inches (100 mm)
  • the entire chain guide is enclosed


Total lengthTrike: 60″-70″ (152-179 cm) Trailer: 65″-76″ (165-192 cm)
Total width‚Äč39″ (73 cm)
Total height27″-31″ (68-78 cm)
Seat height13″-17″ (33-43 cm)
Bottom bracket height12.5″ (32 cm)
Frame and Front BoomAluminum
Max load220 lb (100 kg)/176 lb (80 kg) when used as trailer
Height of rider39″-63″ (100-160 cm)
Max. load143 lb (65 kg)/88 lb (40 kg) when used as trailer
Height of rider3’3″-4’11” (100-150 cm)
BrakesAvid BB7 mechanical disc brakes with parking brake lever
WheelsRear: 20″, Front: 16″, Tire: Kenda 58-406mm tires with reflective sidewalls and puncture protection – spoke protectors – Cover for brakedisc and wheel
GearsShimano Nexus Premium 8-speed internal gear hub
CranksetAluminum 115 mm 32 tooth
FendersSKS black matt
PedalsChildren’s Pedals with Toe Clips and Straps
Lighting systemBattery light – Spanninga Axendo headlight, Spanninga Elips taillight
Weight43 lb (19.5 kg)