Hi folks, I've been looking at the geometry on a new build I'm putting together and before I get the frameset I wanted some insight. I'm 6.1' with a 34inch inseam. I'm building a gravel bike with the Ibis Hakka MX. My current road bike is a Trek Emonda ALR 58cm with an H2 fit that has a headtube angle of 19cm (190mm) whereas the 58cm Ibis Hakka MX has a 175mm and 61cm 195mm. The Ibis Hakka MX 58cm has a far lesser headtube length than my Trek Emonda which would put the frontend a bit lower I suppose. However, the 61cm Hakka MX has a 195mm headtube which is taller than my Trek's 58cm. As for the seat tube angle on my Trek Emonda it's a5 73.0 degrees and both 58cm and 61cm Hakkas are at 73.5 degrees. I'm not sure if this will be a big impact on me. As for effective top tube, my Trek Emonda ALR 58cm has a 57.3cm (573mm) effective top tube and the Hakka MX 58cm has a 570mm and 61cm has 590cm.


As for my current 58cm Emonda I feel that it's a comfortable ride but my Seatpost sticks up pretty high and I'm running 172.5 cranks. Some people at the bike shop tell me I should have sized up on the frame and went with a 60cm so it's too late for that. But with my new gravel build, I was thinking of going with the Hakka MX in a 61cm. I'm not sure though. Can someone shed some light on sizing on these two frames and tell me with my measurements and geometry listed if a 61cm Hakka MX would be the better one to go with. All help appreciated.