BRR tests on pretty narrow rims, so tires almost always end up bigger than he measures. Also, he measures them fairly fresh, and they will likely stretch some over time
I’d skip the Continental Shieldwall tires. They test slower than the larger ProTection versions (Race King as an example below).
I’m still in the honeymoon phase with the 700x48 Thunderos but they’re great so far. BRR measured them at 45.6mm on a 17.8mm internal rim. They’d probably be true to size after settling in on a ~24mm internal rim (given they’re 50mm for me).
Are you asking about a specific tire, or just in general? BRR has tested a wide variety of tires, including some different versions of the same tire. Generally speaking, anything that makes the sidewall tougher is also going to make it less flexible, which will increase Crr.
I’m in the US and ended up ordering them from Germany. Got some hard to find Conti tires too…prices were great even with $30 shipping. Just figured I’d mention it!
I did a short test on some ThunderBurt 2.1s. They were interesting. The heavier weight (compared to Tufo 40s) was a little slower to accelerate, but once spinning, the flywheel effect was noticeable. They just want to keep rolling, and they felt faster than I expected on pavement. In the dirt, I found myself being less picky and cautious (meaning slow) about my lines though rough spots. As discussed earlier in this thread, the additional width does come with an aero penalty. Unfortunately, the TBs were too tight a fit on my bike for them to be a reasonable option. I doubt I would use them for racing, but it would have been fun to have them on a second set of wheels for some gnarlier local rides.
I’m very curious about Thundero 48s. Remember that BRR uses 17.8mm internal rims, which makes a lot of tires measure smaller than the sticker width.
BTD looks to have the 700x48 HD coming later this month. Doesn’t look like they have the regular ones. It’s nice to get them closer to $35 before shipping from Germany though
Yes, the conti’s are on my considerations: Continental
Race king 2.0- shieldwall compound
Terra trail 50mm shieldwall compound- measured 48mm
Cross King 2.0- shieldwall compound
Vittoria Terreno Zero 50mm Vittoria Terreno Dry 50m
57.7mm on my rear triangle clearance. I’m running stock wheels @ 19mm internal I think? (Spending on good tires>good rims), I would try the thunder Burt’s but I would hate to order for them not to fit.
Conti Shieldwall Terra Hardpack 50 Vs Thundero 48mm.
Width tested 48mm vs 46mm.
BRR 28psi 18.6W vs 31 psi 18.5 W
I think based on this I’d rather the Terra Hardpack, despite there being a better conti compound?
Dream tire would be a 50mm or a 29x2.0 Protection conti
The Vitorria tires test slow, the pirelli’s are decent, but even then the conti’s test faster still. SO Conti Shieldwall?
