DT Swiss rim totalled

[Elvis]

Ok so i totalled my DT Swiss 4.2d rim. i think it is because my tyre presure was too low. I weigh 82 kg's and i'm 1,87m tall. is there some chart on tyre pressure, or some advice please. i don't want to run a too high presure as i ride a hardtail. i use Maxxis Larsen TT foldables.

[tabasco]

the 4,2 are super soft rims, the 240 hubs are great. Keep the hubs and build them up onto stronger rims. I made my one rim square and it was not even a big hit. Going to build the hubs onto mavic 819's

[Thug]

I totalled a 4.2 rim less than 6 months after buying it. As tabasco says, they are super soft. Rather look at the 4.1 rim.

 

[Brad@TheRiot]

The 4.2 is light weight xc rim. If your pressure is more or less correct, and you totaled it then you'll need some heavier duty rims. The 5.1's are pretty good!

 

 

[Elvis]

Do anybody know of any chart or something on tyre presure. I use 2 bar, but im thinking of upping it to 2.5 bar...

[xak1]

2 bar to 2.5 bar should be fine.  How did the damage happen?  I am slightly heavier and have had these rims for more than a year - no problems.

[Bike Mob]

if your tires are non ust then go to 2.5 bar. ust tires could run 2.2

[Goodbadugly]

Dt Swiss gives the max rider weight of the 4,2d as 90 kg. Add a bit of kit, bottles, a rough rider (I am not saying you are rough) and a rough XC track and you may need a new rim. This is always a difficult point. You get a 120 kg rider just cruising along and then you get a 67kg guy giving it horns. So what is the max rider weight?.

The 4.2d is the lightest XC alu rim produced by DT swiss at 400 grams (inner bead 19mm). The 4.1 weighs 425 gram (inner bead 17 mm)

I have found the 4.1 tougher. I have also replaced a 4.2d rim.

I ride 2.0 bar and 1.8 bar. 2.1 tubeless tire. Weigh 76kg.

And yes, get a good wheelbuilder.

Goodbadugly2009-09-22 14:12:34

[rad006]

Wow glad I didnt do my Hope Pro 2 on these rims now....

 

Thanks guys

[Goodbadugly]

I wouldn't say that they are worse that other rims in that weight group. Just remember to compare apples with apples. If you compare the heavier Mavic XM317 to the lighter 400 gram rim you will also find the 717 "weak". A friend of mine totaled a 717. And he is not an aggressive rider.

If the manufacturer reduces rim weight, they either have to make the material thinner or omit the eyelets. Some manufacturers claim wonderful stiffness and strength for their products using certain alloys. Decide if you believe in their claims.