Review: 6 of the best tire inserts fitted and rated
The Rimpact Pro uses two densities of foam. There is the wider, softer rear that sits against the rim and the harder compound band on the top.
The Rimpact Pro is a malleable, dual density, wedge shaped insert that only comes in pairs. You can get sets that blend the Pro with the original, which uses only one density, or sets that include a 29 “insert as well as a 27.5” insert. Because the insert sits on the rim well, a feature shared with the CushCore, special insert valves are required and are included in the box.
Price per set: $ 99
Special valves? Provided
Wheel sizes: 27.5 and 29 “
From the first pass on the Rimpact and its qualities were very visible. It is much more of a platform and much firmer than some of the other inserts tested. After a few races, I lowered the pressure to 18 / 21psi. It was so much firmer that it had a noticeable effect on the way I weighed the bike. Initially I didn’t have as much spring in the tire so my front / rear weight was off when I was riding in fall. It’s something you get used to very quickly, but the way you preload the tire seems to be a little different.
Rimpact’s performance can be summed up in one sentence: The more you push it, the more it gives you. What I would call the corn flour effect where the harder you hit it, the more it firms up is very evident.
It looks a lot more like a system. This is not something to use with your normal pressures, but rather in conjunction with the lower pressures activated by running the insert. The handling was fantastic. The feeling of firmness is no different from performing a heavier compression piece. He hit through everything he came across and it was amazing. It rewards you the more you push and I consider it a performance product for people who don’t just want to protect their rims from occasional impacts, but rather people who need inserts to allow them to execute lower pressures without that they do not break immediately. wheels.
I found the Rimpact to be tiring at times. It doesn’t feel so comfortable, as you often feel like you’re riding on the backing of the material rather than the tire supported by an inner tube alone. It offers huge amounts of grip, but to say there is no compromise in terms of comfort wouldn’t be true. I also tend to use a very firm spring rate which could have exacerbated this problem to some extent. I would, however, be very curious to try the Rimpact with a slightly lighter compression air on my fork.
I ended up going as low as 17 / 19psi on a particularly wet day. The handling of the Rimpact is really fantastic. Reaching high lines above the camber roots is very impressive and there is a tangible payoff to be had. Going down to such low pressures seemed very weird to me and I was certainly a little skeptical. However, the Rimpact supports the tire in such a way that it provides tremendous grip and excellent platform when cornering. Once you hit something, instead of deflecting your wheel, it tends to “get stuck”. I would compare this to using a hammer drill.
When riding around corners without inserts, if you run lower pressures, the tire can almost be left behind when it finds grip and the rim moves sideways through. Rimpact’s support means that while you can get the low pressure grip, it’s backed up enough to really cut corners and stop the rim under side load.
Thanks to the cuts, it took massive noises. By hitting the wheel against rocks, the noise that came out of it was definitively known. While the Rimpact offered tremendous support, it wasn’t as quiet as I would have liked. It was hard to tell if this was the insert snapping against the rim or perhaps the wheel itself transmitting the sound. Anyway, I noticed it.
It’s definitely more tiring than the other inserts, but it could also be related to the grip – it will force you to hit things harder. To get the most out of the Rimpact, you have to crack to enter the insert race. And if you do, you will be duly rewarded. If the Tannus is a parachute, it is more like a bungee jump – the free fall is minimal, and just like the bungee rope taking the tension, the insert duly takes the load at a relatively early stage.
+ A real high-performance product
+ Most favorable to the test
+ Offered a transformative change
+ Allows you to run ultra-low pressures
– Not everyone wants transformative change
– Can be slightly noisy
– Prioritizes performance over comfort