Hi,
I´ll be participating in the IM Arizona in about two weeks and almost 6 months ago I have changed to a 1x Drivetrain (Sram Force 1 crankset with etap wifli RD). I am so far very satisfied with this change since I have ridden and competed on quite flat areas. I use mostly a 54 t chainring and 11-28 cassette, in the past I used a 53t chainring. I chose the 54t because my chainline is with the 1x drivetrain more often “straighter” than with a 52t chainring (in other words, I do not have the ego nor power to ride often at 54/11…). I have nevertheless also a 52t chainring and 11-32 cassette available as options. I tend to avoid the use of the 11-32 cassette because I dislike the existing gap between the 15 and 17t cogs, it seems that I ride regularly on those 3 cogs (15, 16 and 17t). My IM bike splits are commonly just under 5 hours and my NP is at about 225W for this distance.
And now my question for you all and for those who know the bike course of the IM Arizona : Do you ever change to the small chainring in the 6 mile slight uphill section of this bike course? And considering the above mentioned, what drivetrain combo would you recommend for this race?
Many thanks in advance for your input! Cheers
I´ll be participating in the IM Arizona in about two weeks and almost 6 months ago I have changed to a 1x Drivetrain (Sram Force 1 crankset with etap wifli RD). I am so far very satisfied with this change since I have ridden and competed on quite flat areas. I use mostly a 54 t chainring and 11-28 cassette, in the past I used a 53t chainring. I chose the 54t because my chainline is with the 1x drivetrain more often “straighter” than with a 52t chainring (in other words, I do not have the ego nor power to ride often at 54/11…). I have nevertheless also a 52t chainring and 11-32 cassette available as options. I tend to avoid the use of the 11-32 cassette because I dislike the existing gap between the 15 and 17t cogs, it seems that I ride regularly on those 3 cogs (15, 16 and 17t). My IM bike splits are commonly just under 5 hours and my NP is at about 225W for this distance.
And now my question for you all and for those who know the bike course of the IM Arizona : Do you ever change to the small chainring in the 6 mile slight uphill section of this bike course? And considering the above mentioned, what drivetrain combo would you recommend for this race?
Many thanks in advance for your input! Cheers