This is the standard lacquered bobbin for all Louët Irish Tension wheels. This bobbin can be used for older wheels too - S10, S51, S20, S60, S70, S71, S75, S76, S77. ratios: 1:5.5 / 1:7.5 / 1:10.5
volume: 670 cm3 (42.4 cubic inch)
S17 IRT Bobbin
This bobbin is the same size as the Standard bobbin, but it is unfinished. recommended for the S17, S15 and S75 wheels, who were all sold unfinished. ratios: 1:5.5 / 1:7.5 / 1:10.5
volume: 670 cm3 (42.4 cubic inch)
S10C Bulky Bobbin
This bobbin will fit with older wheels whose original flyer was a bulky flyer. The Bulky bobbin fits well with current Bulky bobbin and Art yarn flyer. ratios: 1:4 / 1:5 / 1:6
