


Fly Bikes Proton CST 20 Inch Bike
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Fly Bikes Proton CST 20 Inch BikeThis sick rig from Fly Bikes is decked with Trebol and Fly Parts to create a shredding machine! This is the Cassette (CST) version. Clickety Clack it pedals when you go back. PROTON model is the mid range BMX Bike that performs perfectly on streets but also on ramps. A resistant bike suitable for any purpose a rider could have. 100% CrMo Frame, Fork & Bars Front & rear sealed Hubs. Pegs and Hub Guards included. 3 Piece CrMo Crankset. Removable brake
Quick Dispatch:
Your Fly Bikes Proton CST 20 Inch Bike orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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You'll receive a tracking link by email once your Fly Bikes Proton CST 20 Inch Bike ships.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.3 ★★★★★
Based on 382 reviews
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Product Reviews
★★★★★ 5
Excellent shoes - good fit, nice look.
Excellent shoes - great value for money! Attractive and well built. Got several unsolicited compliments from co-workers. They are stiff at first and require a bit more of a break-in period than some other shoes I have purchased lately. I hope that is a sign of durability ...
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Reviewed in the United States on February 19, 2026
★★★★★ 4
I like them
Size: 12, Color: Black Crazy Horse
Nice quality shoes. Wore them to 2 different weddings and they were comfortable and true to size
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Reviewed in the United States on March 26, 2026
★★★★★ 5
Quality!
Size: 11.5, Color: Black Crazy Horse, Size: 11.5, Color: Black Crazy Horse
Stylish and most importantly they are comfortable right out of the box, no breaking in required. This is my second pair, I now own both the black and brown colors to compliment almost any outfit. Worth the price!
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Reviewed in the United States on November 17, 2025
★★★★★ 5
Absolutely comfortable.
Size: 9, Color: Brown Multi
I am always on the lookout for a professional, but very comfortable shoe (education field with a lot of walking). These Florsheims fit the bill and make me wonder why I never bought these before. Something about them just didn't "look" comfortable to me but man was I wrong. These are easily among my most comfortable work shoes with the bonus of also looking more professional. I will say they have some heft to them, so if that's a problem for you these may not be right for you. As for me, they are right as rain.
I purchased the black and brown ones (with white souls) and they are at the top of my rotation now. I look forward to trying some more from Thai company.
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Reviewed in the United States on September 10, 2025
★★★★★ 2
These shoes are comfortable and true to size but the shoe strings keep coming untied constantly.
Size: 10.5, Color: Cognac Tumbled
I would give it 5 stars but...
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Reviewed in the United States on February 22, 2026