LOOK Cycles 566 SRAM Rival Road Bike - 2009 - 2009

The XL (57) is as big as this bike is made. That being said I own the bike and am 6 foot even. I could have road the L also and I have shortened the bike with a stem swap. My brother is taller than me and liked the bike witht the stock 120mm stem. So the XL should work fine.

The SRAM Rival crankset is 130BCD and the 50/34T can be swapped with a 53/39T. SRAM chainrings are available but you can use aftermarket rings or Rotor Rings.

The OG-1070 Cassette is compatible with any 8/9/10 speed Shimano wheelset including your Matrix 38s. The Cassette is not compatible with the new Shimano 10-speed deep-sline cassette bodies. All in all your setup looks awesome.

Usually that best way to tackle this problem is with proper stem selection, not higher spacer stack. This bike has a carbon steerer tube and most manufactures reccommend a maximum of 35mm of space on a 1 1/8 inch carbon steerer. It is usually safer and much more professional looking if you get extra height but fliping the stock 6 degree stem or swapping out the stem for a +10 degree or higher rise. Real cyclist may also offer to ship the stem uncut if you prefer to have a professional fit completed at your local shop.

When the bike is built we leave every spacer on that it comes with so you can adjust the fit. The post is cut in house by our certified mechanics so if you would like to leave it longer please give us a call and we can make sure it is left long when you place your order.

The [53] has a 172.5mm crank length. All other have 175mm. Yes the cassette is a 12x25 SRAM OG-1070.

It sounds like the 53 fits you better. If you feel too stretched out you can run a shorter stem and tweak your seatpsot and you should be fine. I hope that helps, it's hard to help with fit without more information.

Are you sure you don't have a riser stem now? I will have to measure up to reply forsure but with my -6 degree stem I would have have to put the seat very low to make the seat level with the bar tops. I added two new pictures that will give you more geometry information.

The small frame should be great for you, especially if you like to ride a little more aggressively. if you are a more upright rider then the medium will be a better choice. Thanks

Damon, thanks for your reply. I noticed the M Look has a headtube of 164mm + ~15mm for the headset gives 179mm. My current total stack is 172mm and I have nearly zero saddle to bar drop. This means without spacers, the M frame would place my bars higher than my seat. Isn't this a problem? Or maybe I've done my math wrong?

I own this bike and normally ride a 58cm with standard geometry. I bought this bike in XL (57cm) and it was actually a little big for my taste. I had it professionally fit and only and the only changed the stem to a 110mm from a 120. I am 6 foot even with a 34.5 inch inseam and the seat tube is perfect. I am going to go out and say if you are between 5'11" - 6'2 and have a normal build the 57cm is in your size range.

My brother rides 59s and loved the fit of this bike when the 120cm stem was on. He is a little longer that me. You might be on the cusp of the size for this bike but it does run a little bigger than you would expect.

I love this bike too.

The actual top tube is only 55cm while the "virtual" top tube is 57cm. So the slope is already incorporated into the size. So it will be too small for you.