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Will I have enough seatpost for my bike?

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Will I have enough seatpost for my bike?

Old 04-20-21, 01:10 PM
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Birdbikes
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Will I have enough seatpost for my bike?

I ordered an 18 inch bike because I read its better to go with a smaller one than a bigger one (i'm 5'10 with a 33.4-35 inch inseam 34.5-35 inch inseam with shoes on. 69 inch wingspan).

it says the seatpost has a maximum height of 37 inches from the bottom pedal stroke.

is that enough seatpost for my inseam? I'm not really sure how high up it should be besides for full leg extension.

I'll buy a bigger seat post if I have to, i'm just wondering if i'll have enough height with the stock one.

Last edited by Birdbikes; 04-20-21 at 10:34 PM.
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Old 04-20-21, 01:17 PM
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growlerdinky
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that is a very small bike
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Old 04-20-21, 01:18 PM
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Not sure about an 18 inch frame for your height and inseam. I'm similar to you at 5'11", 34 inch inseam, and have a 20 inch framed hybrid and 56cm road bike and those are on the small side. I could easily go larger if needed. Smaller would be way too small. YMMV
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Old 04-20-21, 01:19 PM
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Birdbikes
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I probably should have mentioned the bike is an ebike called the radmission. I went with the mid-step version.
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Old 04-20-21, 01:40 PM
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All the information you could possibly want is on their website.

https://radpowerbikes.ca/products/ra...ric-metro-bike

Look at the chart near the bottom of the page. You are on the upper edge of the smaller size, so I would have sized up. It isn't just leg length but reach to the handlebars that should factor in sizing a bike.
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Old 04-20-21, 01:44 PM
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I was told that since I have longer legs but shorter arms, I need a shorter reach once I put the seat up high enough for my legs. The handlebars are a bit closer on the mid-step and they are also higher which I assumed would be best once the seat is up.
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Old 04-20-21, 04:36 PM
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Except your arms are within the normal range of your height. I am still not convinced that this is the size of bike I would choose for you. Your original question was "would there be enough seat post" and the answer is yes but at the extreme edge of the sizing chart. This tells me that I would rather size up rather than have a ton of seat post showing and have all that leverage to play havoc. This may or may not happen. This is just one opinion, let others chime in and see what they say.
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Old 04-20-21, 08:54 PM
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You are finding a lot of ways to talk about buying a rad power. Just buy the bike and when it fails get something more decent. Easy Peasy. If a bike only comes in one or two sizes and you can't test ride it probably a bike I would avoid especially if I am worried enough to create 3-5 different threads on the same topic.
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