BIRD Aeris 9 Progression Rate, same as AM9 with RRR linkage being around 30% On Bird AM9 progressivity: “It drops the total rising rate down from a whopping 49% down to a nicely poppy 29%.” (source https://www.bird.bike/product/rrr-linkage/)
seen from China

seen from Singapore
seen from Spain
seen from Philippines
seen from Argentina
seen from United Kingdom
seen from United States
seen from Spain
seen from Netherlands
seen from United States
seen from Netherlands
seen from Indonesia
seen from India
seen from Singapore
seen from United States
seen from United States
seen from United States

seen from Morocco
seen from Germany
seen from United States
BIRD Aeris 9 Progression Rate, same as AM9 with RRR linkage being around 30% On Bird AM9 progressivity: “It drops the total rising rate down from a whopping 49% down to a nicely poppy 29%.” (source https://www.bird.bike/product/rrr-linkage/)
The oft-spotted Swinley Aeris, languishing in mild spring conditions after a short southerly migration. #iowmtb #iowshots #birdmtb #mtb #spring #hdr #iphone4s #nofilter (at Calbourne, Isle Of Wight, United Kingdom)