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Adult sizing guide

Islabikes are carefully sized to ensure they are safe and comfortable to ride. To find out which Islabike is perfect for you please follow the guide below.

Take the following two measurements.

Inside leg:

The rider should stand with their back to a wall in socks, ensuring the feet are flat on the floor.
Place a book between the legs.
Slide the book up the wall until it contacts the crotch firmly.
Mark the wall at that point.
Measure from the mark straight down to the floor.

Height:

Place the book flat on the head.
Mark where the bottom of the book touches the wall and measure straight down to the floor.

Sizing table

Next, consult our size chart to determine which bike is most suitable. For further fitting advice please contact our customer services team who will be happy to discuss your measurements and advise on the most appropriate size.

It's important to firstly measure your inside leg. If your leg fits in two size brackets, choose the size that also matches your height.

Beinn - Adult multi-purpose bikes

Model name	Approx min age	Min inside leg	Max inside leg	Min height	Max height
Beinn XS	Adult	68cm	74cm	150cm	157cm
Beinn S	Adult	72cm	79cm	157cm	167cm
Beinn M	Adult	77cm	83cm	167cm	177cm

Creig - Adult mountain bikes

Model name	Approx min age	Min inside leg	Max inside leg	Min height	Max height
Creig XS	Adult	68cm	74cm	150cm	157cm
Creig S	Adult	72cm	79cm	157cm	167cm
Creig M	Adult	77cm	83cm	167cm	177cm

Luath - Adult road and gravel bikes

Model name	Approx min age	Min inside leg	Max inside leg	Min height	Max height
Luath XS	Adult	68cm	74cm	150cm	157cm
Luath S	Adult	72cm	79cm	157cm	167cm
Luath M	Adult	77cm	83cm	167cm	177cm

Janis - Adult road bikes

Model name	Approx min age	Min inside leg	Max inside leg	Min height	Max height
Janis Extra Small	Adult	68cm	74cm	150cm	157cm
Janis Small	Adult	72cm	79cm	157cm	167cm
Janis Medium	Adult	77cm	83cm	167cm	177cm
Janis Large	Adult	81cm	87cm	173cm	187cm

Jimi - Adult mountain bikes

Model name	Approx min age	Min inside leg	Max inside leg	Approx height	Max height
Jimi Small	Adult	72cm	79cm	157cm	167cm
Jimi Medium	Adult	77cm	83cm	167cm	177cm
Jimi Large	Adult	81cm	87cm	173cm	187cm

Joni - Adult multi-purpose bikes

Model name	Approx min age	Min inside leg	Max inside leg	Approx height	Max height
Joni X Small	Adult	68cm	74cm	150cm	157cm
Joni Small	Adult	72cm	79cm	157cm	167cm
Joni Medium	Adult	77cm	83cm	167cm	177cm
Joni Large	Adult	81cm	87cm	173cm	187cm

Joni - Dwarfism bikes

Model name	Rider	Min inside leg	Max inside leg	Approx minimum height
Joni 20	Adult	40cm	52cm	115cm
Joni 24	Adult	52cm	63cm	125cm

e-Jimi - Adult electric mountain bikes

Model name	Approx min age	Min inside leg	Max inside leg	Approx height	Max height
e-Jimi Small	Adult	72cm	79cm	157cm	167cm
e-Jimi Medium	Adult	77cm	83cm	167cm	177cm
e-Jimi Large	Adult	81cm	87cm	173cm	187cm

e-Janis - Adult electric road bikes

Model name	Approx min age	Min inside leg	Max inside leg	Approx height	Max height
e-Janis Extra small	Adult	68cm	74cm	150cm	157cm
e-Janis Small	Adult	72cm	79cm	157cm	167cm
e-Janis Medium	Adult	77cm	83cm	167cm	177cm
e-Janis Large	Adult	81cm	87cm	173cm	187cm

e-Joni - Adult electric multi-purpose bikes

Model name	Approx min age	Min inside leg	Max inside leg	Approx height	Max height
e-Joni X Small	Adult	68cm	74cm	150cm	157cm
e-Joni Small	Adult	72cm	79cm	157cm	167cm
e-Joni Medium	Adult	77cm	83cm	167cm	177cm
e-Joni Large	Adult	81cm	87cm	173cm	187cm