The Scout continues to be Transitions mid-travel 27.5" bike, but now utilizes a very unique approach to frame geometry, and Transition is calling it Speed Balanced Geometry (SBG). What's the scoop on SBG? Let's get into it - or if you don't care to endure the brain pain of learning the nitty gritty details, and you just want to know that it's awesome, then you can skip the whole next section called "What is SBG"?
What is SBG?
As bikes have evolved over the last several years, we've seen top tubes get longer, seat tubes shorter, head angle slacker, stems shorter, and bars wide. These are all arguably positive changes, and have helped to shape some of the most capable mountain bikes we've ever ridden. One area that hasn't changed is fork/steering trail. SBG incorporates the perfect balance of three key geometry traits, including reach, seat tube angle, head tube angle, and trail. Most of our familiar with the first three, but some of us may not be familiar with trail. What the heck is that?
Trail is a geometry dimension which takes into account both head tube angle and fork offset, which in turn affects steering feel and handling. It can be thought of as the tire contact point trailing behind the steering axis. Less trail equates to faster steering, effectively making the bike feel more nimble, but less stable at high speeds. More trail equates to slower steering, but provides more stability at higher speeds. With SBG, the head angle has been slackened, and the fork offset reduced, effectively providing more trail. That means the suspension fork on the 2018 Scout has a 37mm offset, which is 9mm shorter than a typical 27.5" suspension fork with a 46mm offset. The shorter offset fork brings the front axle rearward and under the rider, increasing front tire traction and provides more direct steering connectivity from the rider.
Head Tube Angle
Transition has slackened the head angle on all of their SBG bikes. The slacker head angle allows the fork to absorb impacts better at all angles, and reduces deflection. It also tends to reduce fork dive. positions the front wheel further forward in relation to the handlebars.
Seat Tube Angle
Seat tube angles on SBG bikes have been increased (steepened) by about 1.5 degrees. This puts your body in a more central location between your two tires while climbing, improving traction and reducing the amount of suspension sag while seated.
Transition's SBG bikes utilize a longer reach, but also are meant to be used with shorter stems, no longer than 40mm. Shorter stems provide a more direct steering path from your handlebars to your front wheel.
Transition believes they have achieved a balanced design here that effectively incorporates all of these factors, all while still achieving a nimble and responsive ride. This overlay effectively shows what an SBG bike looks like compared to Transition's previous model year bike.
That's it for SBG
Onto the fun stuff! Much like the last Scout, this bike simply begs you to get lost in the woods, and have a blast while you're at it. No, it's not a wildly slack bike with gobs of suspension travel - if that's what you're after, best check out the Patrol. The Scout is a fairly short-travel trail bike, and with the reworked Speed Balanced Geometry, it's more versatile than ever. It is quick to pop up and get playful without any hesitation whatsoever. Much of this can be attributed to the GiddyUp suspension platform, tuned to get the most out of your travel. The Scout is nicely equipped with 130mm rear travel, and designed around a 150mm travel fork. While it's not a huge amount of rear travel, it is enough to soak up just a little more on those bigger hits, while still keeping the playful nature of the bike. As local shredder Keeland Hawks proves, this bike really does punch above it's weight (see video below).
The Scout frame has ample clearance with Boost rear dropout spacing to accept 27.5" tires up to 2.8". That gives riders lots of choices for tires, which is a welcome addition to this bike. Looking for massive traction at super low tire pressures? Look no further than 2.8" tires, they will get you just that. For a more playful feel, or for those that aren't a fan of plus tire, toss a set of 2.4" or 2.5" tires on the Scout. And for those who can't decide one way or the other, 2.6" will fit just fine too!
The Scout utilizes metric shock sizing with a Fox Float DPX2 on board, specially tuned for this bike. Other highlights include Boost 12x148mm rear dropout spacing, new rattle-free internal cable port covers, molded rubber downtube and chainstay protectors, as well as increased seat tube bore for compatibility with longer dropper posts. A threaded 73mm bottom bracket shell is another big plus in our book, as well as collet-style main pivot hardware makes for very easy maintenance. And for those who want to keep the weight off their back, the Scout has clearance for a full size water bottle inside the front triangle.
The Scout frame is backed by Transition's 3-year "Got Your Back" manufacturer warranty.
- Wheel Size: 27.5"
- Frame Material: Aluminum
- Rear Shock: Fox Float DPX2 Performance
- Rear Susp. Travel: 130mm
- Rear Shock Size: 210x55mm
- Rear Shock Hardware Size: M8 x 30mm Top / M8 x 25mm Bottom
- Rear Axle Standard: 12x148mm Boost
- Brake Mount Type: 180mm Post Mount
- Max Rear Rotor Size: 203mm
- Max Chainring Size: 34T Single
- ISCG Tabs: I-'05
- BB Standard: 73mm BSA
- Seat Post Dia: 31.6mm
- Seat Clamp Dia: 34.9mm
- Headset Standard: ZS44/ZS56mm
- Front Derailleur Mount: NA
- Max Rear Tire Size: 27.5" x 2.8"
- Water Bottle Cage Mounts: One
- Intended Use: Trail/AM
- Warranty: 3 Years