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 China
seen from Malaysia

seen from United Kingdom
seen from China
seen from Czechia
seen from Türkiye

seen from Malaysia
seen from China
seen from United States
seen from Netherlands
seen from France
seen from China

seen from Malaysia

seen from Australia
seen from Malaysia
seen from Canada

seen from United States
seen from United Kingdom
seen from China
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)