Ive been running the 40 mm with latex tubes inflated at 33 psi front, 35 psi rear on a mix of gravel and pavement (I weigh 160 pounds). They measure 40 mm wide mounted on HED Ardennes Plus rims. Theyre supple and about as fast on pavement as the Challenge Gravel Grinder Race 38s, but have much better grip and balance on loose gravel. They also feel fast on gravel, and are almost as secure on rough and rutted sections as the Panaracer Gravel King 43s running at about the same pressures. Compared to the Gravel Kings, they have a much lighter feel, partly because theyre each about 100 g lighter. I havent yet tested the Terra Speeds on a loose sandy surfaces or significant mud, so cant comment on performance in those conditions. I like the Terras enough that Ive just ordered a third to keep around as a spare.
Have these on my Boone on an Aeolus Pro 3 TLR wheelset. Mounting was pretty straightforward, I used Orange Endurance sealant. I had a slow leak in my front tire, but after a few rides the leak stopped. Ridden at 50psi, these are great on a well traveled dirt road, an old dirt and gravel road without smooth tracks or on pavement. I rode up a local mountain (in the Berkshires) after a rainstorm, so the dirt turned to mud but I didn't experience wheel slip or get stuck. I got the 35mm version, and thought initially I should have gone with the 40, but these have been fast, grippy, and great.
Fast, grippy, durable, easy setup. My favorite for a while now. Yes the Black Chili compound is worth it.
They work good - fast and traction - no punctures - but sidewall wear is real.
I use the Terra tires on gravel 1 & 2 levees and dirt roads as well as road group rides.
Best gravel tires I have ever ridden!! Great grip.
I have taken these tires off road and have been very impressed with traction. On road performance is pretty good too.
Not a ton of grip on loose stuff but they sure do roll fast. They also wear quick.
