Zero TR – NX 11 speed

£1,448.00£3,541.63 £1,208.00£3,369.24

The Zero TR-NX11 is the best value 11 speed bike we sell. Featuring the excellent 11 speed SRAM NX drivetrain.

Size Chart:

This table is for guidance and is based around a 50mm stem.  Larger or Smaller frames can be suitable depending on stem length and riding style.  If in doubt, a good guide is to find the ETT (effective top tube, or horizontal top tube) of a frame that you are comfortable riding, and add the stem length to this number (for example, 600+60 = 660).  Compare this to the ETT + stem of the Bird frame that you are considering.  Feel free to call us for more detailed sizing advice.

Frame Size XS S M L XL
Min Height (Imperial) 5’3″ 5’6″ 5’10” 6’1″
Max Height (imperial) 5’5″ 5’8″ 5’10” 6’4″
Min Height (Metric) 160cm 168cm 178cm 185cm
Max Height (Metric) 165cm 173cm 178cm 193cm