Free 2-Day Shipping on Orders Over $50
1-888-276-7130
Save 35% on Santa Cruz
  • Yeti Cycles T-Series GX Eagle Complete Mountain Bike - 2018
  • Yeti Cycles T-Series GX Eagle Complete Mountain Bike - 2018 Detail
  • Yeti Cycles T-Series GX Eagle Complete Mountain Bike - 2018 Detail
  • Yeti Cycles T-Series GX Eagle Complete Mountain Bike - 2018 Detail
  • Yeti Cycles T-Series GX Eagle Complete Mountain Bike - 2018 Detail
  • Yeti Cycles T-Series GX Eagle Complete Mountain Bike - 2018 Detail
  • Yeti Cycles T-Series GX Eagle Complete Mountain Bike - 2018 Detail
  • Yeti Cycles T-Series GX Eagle Complete Mountain Bike - 2018 3/4 Back
  • Yeti Cycles T-Series GX Eagle Complete Mountain Bike - 2018 Detail
  • Yeti Cycles T-Series GX Eagle Complete Mountain Bike - 2018 Detail
  • Yeti Cycles T-Series GX Eagle Complete Mountain Bike - 2018 Detail
  • OptionsYeti Cycles -
  • Detail Images - Detail
  •  - Detail
  •  - Detail
  •  - Detail
  •  - Detail
  •  - Detail
  •  - 3/4 Back
  •  - Detail
  •  - Detail
  •  - Detail
Yeti CyclesSB4.5
T-Series GX Eagle Complete Mountain Bike - 2018
Sale 36% Off$4,199.00 $6,599.00

Item # YTI00EZ

Find your size
|

Note: Actual inseam is not the same as pant inseam.How to measure

Recommended Size

We recommend a size in this bike.

EditMore details

Our size calculator is a starting point for finding the right size for you. To get personal advice talk to one of our fit experts at 1.888.276.7130 or chat now

Select options
  • Cancel
  • Select options
  • Storm, S ($4,199.00)
  • Storm, M ($4,199.00)
  • Storm, L ($4,199.00)
  • Storm, XL ($4,199.00)
  • 100% Guaranteed Returns
Item # YTI00EZ
Description

SB4.5 T-Series GX Eagle Complete Mountain Bike

While Yeti may be known for their hard-hitting, long travel enduro sleds, one of the most capable bikes they've ever made is the SB4.5. The SB4.5 T-Series GX Eagle Complete Mountain Bike delivers XC-level speed with geometry and suspension that makes it competitive with top-level trail bikes when navigating technical terrain. This particular bike also carries the Turq designation, which provides strength where you need it, and lightness where you don't. For the SB4.5 Turq, that means a more precise carbon layup, carefully molded to reinforce key stress points along the frame without adding bulk and claimed to reduce weight by 300g compared to Yeti's Carbon-series frames.

Yeti claims that the SB4.5 has a stiffer pedaling platform than most of its other bikes. While we don't have numbers to verify this claim, it's definitely a responsive go-getter when the going gets mashy, and we think the inclusion of a Boost 148mm rear axle is at least partially responsible for the bike's eagerness on climbs. Coupled with the innate aggression of 29in wheels and the stiff, collet-style hardware, the boosted rear triangle certainly feels every bit as stiff as any of Yeti's other models.

The frame's aggressive speed is not to be outdone by its slack front end and surprisingly capable Switch Infinity suspension, though. Its 67.4-degree head tube is fairly slack for an XC-leaning 29er trail bike, and it makes for a boost of confidence while picking lines across terrain that would make XC-race bikes stumble. The Switch Infinity suspension is equally confidence-inspiring, and its linear travel hits the sweet spot of anti-squat to keep pedaling sharp across rocky climbs, while remaining smooth and supportive as you move deeper into the travel.

While some riders might scoff at the 114mm (4.5 inches) of rear travel on the SB4.5, the 140mm fork that Yeti chooses to pair it with is a better indication of the bike's capabilities. The SB4.5 is for the trail rider who demands that their machine flattens big hits with the same tenacity that it cleans excruciating climbs—a machine that covers ground quickly, efficiently, confidently, and without ever feeling like too much bike. Compared to its bigger sibling the SB5.5, the SB4.5's Switch Infinity suspension isn't quite as soft off the top, and you might fight the bottom of the travel if you overshoot the landing. That being said, the SB4.5 has much sharper handling and rewards technique while picking lines, making the SB4.5 more fun if you're into finesse over just bombing terrain with your eyes closed.

This Turq-series SB4.5 is an in-house build we've put together with reliable, workhorse components that come straight from our inventory, passing savings on to you as the consumer. We started with SRAM's GX Eagle drivetrain with its smooth shifting, wide gear range, and 50t bailout gear for those seriously tough climbs. You can expect quiet operation, precise shifting, and unwavering chain retention from GX Eagle. It's an ideal match for the top-of-the-line Fox Factory suspension with durable low-friction Kashima stanchions and Fox's flagship internals, keeping your wheels tracking in all conditions so you can charge ahead with confidence. Your newfound speed is kept in check by SRAM Guide R brakes delivering plenty of power with an arguably more important feature: impressive modulation. We rounded out the build with sturdy e*thirteen TRS wheels that are ready for abuse and fit a wide range of trail rubber with their 30mm internal width.

  • A highly-capable trail bike that rivals the speed of XC race rigs
  • 4.5in of smooth and efficient Switch Infinity suspension
  • Geometry finds the balance between stability and nimble handling
  • Steep angles (for Yeti) reward a surgical approach to terrain
  • Turq carbon construction drops weight and bolsters stiffness
  • Boost axle spacing transfers power more efficiently on climbs
  • Top-tier Fox Factory suspension with Kashima stanchions
  • SRAM GX Eagle drivetrain offers a wide gear range, quiet operation, and impeccable chain retention
Tech SpecsGeometry
Tech Specs
Frame Material
high-modulus Turq carbon fiber
Suspension
Switch Infinity
Rear Shock
Fox Float Factory DPS EVOL
Rear Travel
114mm
Fork
Fox Float 34 Factory FIT4
Front Travel
140mm
Headset
Cane Creek 40 ZS44/ZS56
Shifters
SRAM GX Eagle 12-speed
Rear Derailleur
SRAM GX Eagle 12-speed
Crankset
SRAM GX Eagle DUB Crankset
Chainring Sizes
32t
Crank Arm Length
175mm
Bottom Bracket
SRAM DUB
Bottom Bracket Type
PF92
Cassette
SRAM XG-1275 GX Eagle 12-speed
Cassette Range
10 - 50t
Chain
SRAM GX Eagle 12-speed
Brakeset
SRAM Guide R
Brake Type
hydraulic disc
Rotors
180mm SRAM CenterLine Rounded
Handlebar
Race Face Aeffect R 35
Handlebar Rise
20mm
Handlebar Width
780mm
Grips
Lizard Skins Charger Evo lock-on
Stem
Race Face Aeffect 35
Stem Length
50mm
Saddle
WTB Volt Comp
Seatpost
Crank Brothers Highline 2.0 Dropper
Seat Collar
35.0mm
Wheelset
e*thirteen TRS Boost 30mm
Hubs
e*thirteen
Front Axle
15 x 110mm Boost
Rear Axle
12 x 148mm Boost
Tires
[front] e*thirteen TRS Race, [rear] e*thirteen TRS Plus
Tire Size
29 x 2.35in
Pedals
not included
Recommended Use
cross-country, trail
Manufacturer Warranty
5 years on frame
Geometry

140mm Travel Fork

 
SMLXL
a Seat Tube
16.5in17.5in19in20.5in
b Effective Top Tube
22.8in23.8in24.8in25.8in
c Stack
23.9in24.1in24.5in25in
d Reach
15.6in16.6in17.5in18.3in
e Stand Over
29.6in29.6in29.6in29.6in
f Head Tube
3.5in3.7in4.1in4.7in
g Head Tube Angle
67.4o67.4o67.4o67.4o
h Seat Tube Angle
73.3o73.3o73.3o73.3o
i Bottom Bracket Height
13.1in13.1in13.1in13.1in
j Bottom Bracket Drop
    
k Chainstay
17.2in17.2in17.2in17.2in
l Wheelbase
44.4in45.4in46.4in47.5in
Find your size

Reviews & Community

REVIEWS

Write a review

    Add a:
  • Photos
  • Videos

No file chosen

Rather attach a photo from your computer?

Familiarity:

Only jpg, jpeg, png, gif or bmp files please.

Submit ReviewCancel
Unanswered Question

What's the approximate weight?