I put 2 pairs of the Sun Ringle Charger Pro's on me and my girlfriends new Endorphins. Here are some of the good points. (I got one set for $436, and the other for $467)
1. Same "Bead Socket Technology" (BST) as a Stan's Flow rim. Meaning you can put a regular tire on with some sealant, wipe the bead with some soapy water, and inflate to 35psi, and snap/crackle/pop you are sealed up and tubeless. Total breeze to set up tubeless.
2. Rim has a 21mm tall profile vs 15mm on a Flow.(from spoke holes to rim edge) I believe this deeper profile will be a bit stiffer and stronger than a Flow.
3. Charger Pro's have straight pull spokes, and eyelets. Meaning they run higher tension than a Flow, and less likely to crack at a spoke hole. A flow can crack if tensioned too high because they have no eyelets. The higher tension should make the Charger Pro's stiffer and the lack of spoke bends prevents spoke breakage.
4. The Charger Pro's come with everything you need to set them up. Even sealant. Mine came with Stan's yellow tape installed, with Stan's tubeless valves, and 2 bottles of sealant.
5. The Charger Pro's come with every fork adapter. 9mm Quick Release. 15mm through axle. And 20mm through axle. As well as both front and rear QR skewers.
6. The Charger Pro's weigh 1700 grams, and yet feel very stiff. They have a 28mm width and work well with 2.35 and 2.5 tires. I only have 4 rides on them, so I can't speak to long term durability, but so far they are still tight as a drum with no loose spokes, and I am very pleased with them.
1. Same "Bead Socket Technology" (BST) as a Stan's Flow rim. Meaning you can put a regular tire on with some sealant, wipe the bead with some soapy water, and inflate to 35psi, and snap/crackle/pop you are sealed up and tubeless. Total breeze to set up tubeless.
2. Rim has a 21mm tall profile vs 15mm on a Flow.(from spoke holes to rim edge) I believe this deeper profile will be a bit stiffer and stronger than a Flow.
3. Charger Pro's have straight pull spokes, and eyelets. Meaning they run higher tension than a Flow, and less likely to crack at a spoke hole. A flow can crack if tensioned too high because they have no eyelets. The higher tension should make the Charger Pro's stiffer and the lack of spoke bends prevents spoke breakage.
4. The Charger Pro's come with everything you need to set them up. Even sealant. Mine came with Stan's yellow tape installed, with Stan's tubeless valves, and 2 bottles of sealant.
5. The Charger Pro's come with every fork adapter. 9mm Quick Release. 15mm through axle. And 20mm through axle. As well as both front and rear QR skewers.
6. The Charger Pro's weigh 1700 grams, and yet feel very stiff. They have a 28mm width and work well with 2.35 and 2.5 tires. I only have 4 rides on them, so I can't speak to long term durability, but so far they are still tight as a drum with no loose spokes, and I am very pleased with them.