Is this bike too big for me? I am 5’2 using a Sirrus X 3.0 frame in XS, the size recommended to me by the website but my junk sits right on top of frame when at standstill. Is switching for a XXS worth it? These are rare sizes and hard to test in person
by tempohclock
11 Comments
That’s correctly sized for you.
Bikes are meant to be ridden on, not stood over.
The purpose of being able to stand over your top tube is so your “junk” doesn’t get smashed if you somehow end up off the seat and onto the top tube. Wear proper footwear when riding which super elevate you a bit as well. I don’t know how old you are but if you still have room to grow, I’d keep that size so you can grow into it a bit.
No
At 5 foot 2, an XS would be correct. There is a option. Find a smaller wheelset. It’s disc brake and you can do that. Your bike appears to be 700c or 29 inch. Look for a 27.5 or 650b wheelset to try. Should get you an inch or maybe even 2 inches, just depends on tire. Otherwise maybe find a 26 inch model bike. Putting a 26 inch wheel on the cirrus may put your crank arm ends pretty close to the ground, so I’m not sure that will work.
Are your jewels touching top tube? Or getting squished?
shorter stem & riser bars w/ back-sweep would be
Looks pretty standard!
My bike is the right size and my reach to floor is similar to you, except I have a dropper post so I can lower the seat so I can stand comfortably but the bike still has to lean a bit for me to have a foot comfortably on the floor.
I honestly would have been happy with a size smaller but don’t know how it would have felt to ride long term.
Standing height isn’t the be-all some think, imho. I’d say the bike is a bit big.
My take as someone only a touch taller than you who owns a size small: Most important is if you feel comfortable while on the bike in the position in your pic. If you do and you can ride like that for an hour +, the frame is good is motion, but the standover is not good. The Sirrus X has a higher standover compared to many competitors in the same class. You can gain 1/2″ moving to 650b wheels and tires, but that’s likely not a cheap upgrade. If you get a pair of shoes with a thick heel and move to 650b wheels that might give you the breathing room you need.
To compare, the Sirrus X standover with its standard 700 wheels is 722mm in an XS, while the Trek FX standover is 715mm for S and 675mm for XS. Usually a XXS frame is for folks under 60″, and at this price point it should be a buy it and ride it without too many sizing tweaks.
The bike should be small enough that you can put at least one foot firmly on the ground when you come to a stop.
And it should be big enough that the saddle can be adjusted high enough so that your leg is almost fully extended at the bottom of the pedal stroke
Honestly it looks a little large for you. You have the seat all the way forward and lowish yet you still have your arms fully extended and your back and shoulders rolled forward to reach the bars. The reach seems too long for you, which suggests the top tube is too long for you. Riding that way will definitely cause back/neck pain over time and possibly groin pressure/pain as you lean forward more to reach.
Height is just a starting point for frame fitting and standover is mostly a practical limitation – I don’t think that’s an inhibiting factor here. The ratio of torso to leg length is often a more important factor, with a longer torso fitting on the upper end of the range and shorter on the lower end.
You look like you have longer legs, which means a shorter torso – which means you’re functionally less tall on a bike. You might be able to make it work by putting a shorter stem on this and use a non-setback seatpost to reduce the reach. But I’d strongly suggest trying the next size down if possible.