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Birdy 3 Upgrade to 20-inch wheels

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Birdy 3 Upgrade to 20-inch wheels

Old 07-07-19, 08:43 AM
  #1  
lyradmil
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Birdy 3 Upgrade to 20-inch wheels

Hi guys, anyone has photos of their upgraded Birdy3s to 20-inch wheels to share? How is the fold post-upgrade, and what are the pros/cons? Would mostly be doing long rides/touring; which tyres would be good post upgrade? Am currently using the schwalbe marathons on my 18-inch.

Appreciate the advise!
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Old 07-10-19, 12:46 PM
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ttakata73
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By going to 20 you are getting a taller but skinnier tire so rollover will be better but less grip, less comfort, and more resistance.
I think for regular roads a fatter tire is safer and more comfortable which is why I have left mine with 18".
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Old 07-10-19, 03:23 PM
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grayrest
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Originally Posted by ttakata73 View Post
By going to 20 you are getting a taller but skinnier tire so rollover will be better but less grip, less comfort, and more resistance.
These very much depend on the tires involved. As far as I know, the main tires available in 355 are Schwalbe Marathon Racers and Kojaks. I know Panaracer makes a Minits Lite for BD-1 but it seems to be Japan only and I've only seen it on Ebay. You could easily go to 349 wheels to get into a broader tire selection, though I believe the fastest available tires are Comet Primos but I haven't looked that carefully. Moving up to 406 gives the broadest selection of tires where I'm fairly sure the fastest options are Schwalbe Pro-Ones / G-One Speeds, Greenspeed Scorchers, and Continental Contact Speeds. I've seen testing I trust showing them all as quite a bit faster than equivalent Kojaks so I expect them to be very unlikely to have more rolling resistance.

I've debated making the switch from 355 to 406 and if I knew the 40mm tires would clear I'd probably do it but I'm not that thrilled about going to 28-406. Despite being somewhat slow the Marathon Racers on my Birdy are actually pretty good at handling the glass on the road I run into on a regular basis.
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