Trek stache 7 sa
The larger bore diameter means broader crank compatibility (standard BSA is best suited to thinner 24mm spindles as space is limited). It’s essentially a super-sized version of the familiar BSA threaded bottom bracket and with that comes easy user-serviceability and a frame-cup interface that isn’t inherently liable to creaking. T47 should, at least in principle, be easier to live with. Is T47 genuinely better?īB90 is a system that looks elegant on paper, but one that relies on very tight tolerances and liable to problems if the bearing seats suffer from wear. These are oversized cartridge bearings that measure 0.1mm more in diameter than the standard part it’s a simple solution, but one that, in my opinion, is a product of an inherently flawed design. Trek’s ‘V2’ bearing is a bit of a sticking plaster for baggy BB90 bottom brackets Thomas McDaniel / Immediate MediaĪ few years ago, Trek released a ‘V2’ bottom bracket bearing as a solution for frames where the bearing fit had gone a bit baggy.
If they get too loose, creaking is all but inevitable, and that’s why some maintenance guides endorse the use of Loctite-style compounds to prevent bearing movement. Park Tool describes BB90 bearings as “a mild press fit” - they typically don’t require as much force to insert as a conventional press-fit and, in some frames, the bearings will actually slip in by hand. With BB86/92 (and the larger but conceptually similar PF30 design), the bottom bracket cups are disposable, but if the bearing seats of a BB90 frame suffer damage or wear, that’s a much bigger problem. You can read our complete guide to bottom brackets here.īB90 bearing placement is the same as that of BB86/92 (and it accepts the same cranks), but the bearing cups effectively form part of the frame rather than the bottom bracket. It actually felt comfortable out of the box, however, I would have traded. It’s built with wide bars, 1×11, avid brakes, and Chupacabra 3.0 tires. The head angle of the bike is fairly steep and the chainstays are short with 420mm on the big wheel size. Often confused with the ‘Shimano standard’ BB86/92 (which a number of Trek’s bikes do use), BB90 (and its MTB counterpart BB95) is a proprietary Trek standard wherein cartridge bearings sit directly in moulded carbon seats in the bottom bracket shell. I had the opportunity to ride the Trek Stache 7 29+ hard tail, a 2600 complete bike. Once you have learned technical stuff and have concluded to the ride discipline you prefer, get a serious bike.BB90 was notable for the way it made use of every mm of available width James Huang / Immediate Media If you are not oriented to racing xc, get a cheaper bike. Learning and evolving on a reliable, yet not top of the class bike, will make you a better rider. 2020 Surly Krampus Static Sunset RockShox 35 Gold Bike. What is your experience level? Beginner or pro? Spending a huge amount of money on a bike as a beginner is wrong. View More: Mountain Bikes Trek Trek Mountain Bikes Trek Stache 2018 Trek Stache.
The current model Trek Roscoe is an over-forked XC toy bike with QR dropout rear. The signature tapered E2 head tube and steeply sloped top tube give good crotch clearance despite the big wheels. Filled by competitors with bikes such as the Specialized Fuse, Merida Big.Trail, Norco Fluid HT, Giant Fathom, Ragleys, Canyon Stoic, and heaps of others, etc, etc. Frame & equipment: Good value kit but heavy steel-legged fork. What discipline do you really want to ride? Do you need something that expensive? Are you a competitor, or just a fan of mtb? Trek now has a big gap in their lineup - A decent trail 29 hardtail. Both bikes you are looking at are expensive xc bikes with some top peripherials. Make sure you know what are you spending your money to.
Before outnumbering some key points I usually look when I want to buy a bike, I will tell you this: Ride them both.