Truvativ Howitzer XR Bottom Bracket 2012
This oversized external system is built for abuse. The bearings are 54% more durable than GXP and 138% more durable than GIGA Pipe bearings. CNC machined AL-6061 cups and chromoly spindle round out this workhorse of a bottom bracket. Truvativ Howitzer XR Bottom Bracket features Axle Bore Thread XR M 12, CNC-Machined Alloy L & R Cups in Pitch Black, and 2 x Sealed Oversized Cartridge Bearings.
Been using this for 3 years and I have operated flawlessly. Still spins as good as it did on day 1.
I've ridden a couple of these with my crankset and they're always tough and quick to install. The latest has some seal issues so I doubt I'll get more than a season out of it. Great bearings and a quick install, not sold on the durability.
A review is a review! Even if it isn't a great one. Mine went up in about 9 months but I believe that was because of the poor rubber seals on the outside. When I took mind apart, there were super heavy dutie bearings inside. If you lived in a dry area, you can't beat the price. But if it's wet, I'd go for a different design. If Truvativ were to seal the bearings better then I'd say this is an awesome BB. But water got into mine and then eventually into the bearing which rusted it from the inside out. But for just $30, that's pretty cheap for a really super heavy duty bearing and if you ride hard like I do putting a ton of torque on a BB, that's not a bad deal. Parts on bikes do wear. But it's super heavy duty built to take the punishment, just not built to keep the water out. Truvativ, fix the seals on this BB and I'm sold on it. The bearings inside were huge and major beefed. Why build such a super nice BB and skimp on the seal design? If you're riding for a season in dry conditions, buy it. For long run? I'd buy something more water tight. So I would say this BB is 1 for the money. Basically, you'll get one season out of it.