Hi Ben - thank you,
I'm 5'9" and riding the 18.5" Stache with a 50mm stem and a 780 bar. It's a fairly upright fit and was roomier for climbing with the 60mm and 70mm stems I tried but the weight balance descending is perfect with the 50mm and the wheelbase set full-long. I prefer it full long for climbing.
A 125mm post was no problem. The 150mm was a stretch with my tallest shoe and pedal combo and lowest profile saddle. There's tonnes of room for adjustment since the top braze-on loosened off from contact with the post - I then removed it.
Hope that helps! Keep in mind Trek does spec the bike around a longer stem than is trendy hence the shorter than average reach per size than is trendy.
Aug. 10, 2017, 4:23 p.m. - Andrew Major
Hi Ben - thank you, I'm 5'9" and riding the 18.5" Stache with a 50mm stem and a 780 bar. It's a fairly upright fit and was roomier for climbing with the 60mm and 70mm stems I tried but the weight balance descending is perfect with the 50mm and the wheelbase set full-long. I prefer it full long for climbing. A 125mm post was no problem. The 150mm was a stretch with my tallest shoe and pedal combo and lowest profile saddle. There's tonnes of room for adjustment since the top braze-on loosened off from contact with the post - I then removed it. Hope that helps! Keep in mind Trek does spec the bike around a longer stem than is trendy hence the shorter than average reach per size than is trendy.