Trek Emonda S 4

5.0 stars
 (8 Reviews)
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  • Building the unthinkable...


When Trek built the Emonda S 4, they created an incredibly fast, fun machine. A bike that features a full carbon frame made from Trek's OCLV carbon, some of the best and lightest in the business. Light is one thing, but what really sets the Emonda apart is the ride. The specific carbon layup and the dialed geometry combine to give you that lively, yet stable feel that makes us get on our bikes in the first place. They didn't skimp on components either. A full 10-speed Shimano Tiagra gruppo and tubeless-ready Bontrager wheels grace the frame and blow the performance-to-value ratio out of the water.

Features & Info

Geometry chart

Trek Emonda S 4 geometry chart

E2 Head Tube

Tapered head tube and fork.For increased stiffness and improved steering precision, tapered head tubes (see image, on left) and forks pair an oversize lower steerer tube (usually 1 1/2-inch, see image, on right) with a standard diameter upper steerer tube (usually 1 1/8-inch). This combination sheds weight compared to straight 1 1/2-inch systems, and adds stability and stiffness when compared to straight 1 1/8-inch systems. The result is a bike that tracks better through corners while allowing for the use of standard stems.

Pedals sold separately

Consumer Reviews

5.0 stars

(8 reviews)

100% of respondents would recommend this to a friend.


  • Lightweight  (3)
  • Responsive  (2)
  • Fun 
  • Nimble 
  • Not too stiff 
  • Quick and fast 


  • Uncomfortable saddle  (2)
  • Mediocre saddle 
  • Shifting cables get loose easily. 
  • Stiff break pads 

Best Uses

  • Climbing  (2)
  • Road 
  • Road bike 
  • Speed 
  • Road cycling 

Mar 05, 2017

Great Bike for the price!

Responsive, Not too stiff, Lightweight, Fun
Mediocre saddle, Shifting cables get loose easily., Stiff break pads
Best Uses:
climbing, speed
I love this bike. I have had it now for about 7 months and it has been a great time. Trek considers this to be an entry-level road bike. However, entry-level from all other brands are usually aluminum frames. This is a carbon fiber frame, making it as light of a bike as some of the more expensive road bikes out there. That said, I have had to get the shifting cables tightened a few times, which may be normal. The seat is mediocre and I upgraded that and I replace the Tiagra brake pads with Ultra and it is much better and more responsive. Even adding the slight upgrades, this bike is still worth every penny and is a great investment.
by El Davisimo from Los Angeles, CA

Nov 20, 2016

Wow, Trek Emonda S 4 -2016 Impresses

Best Uses:
I'm moderate level rider, Avg. 20 mile speed 16.8-17.3mph. The bike handles great and exceeds my expectations.
by TrekyTom from Birmingham, AL

Aug 10, 2016

45 days in

Light, Smooth Shifting
Best Uses:
Got this bike about a month and half ago. So far I have to say I love this bike. Fun to ride it really likes to go. The shifting so far is great and smooth. Would have liked disc brakes but for the cost could in no way expect them. For me this was an upgrade from a 10 year old aluminum Allez so the difference is night and day.
by Michael from AtascocitaTX

Jul 10, 2016

Fun to ride

Responsive, Light
Best Uses:
Overall I love the bike so far. Rides well and is a blast to ride. The only issue I have is I wish they would have really committed to the blue and white color scheme. The Gray frame is nice but think it would have been nice if they made the frame blue. As for the ride the bike was responsive the wheels were solid on the road and turns with out feeling like I had to work to get them going.
by Michael from Houston, TX

Jun 15, 2016

Good Bike

Lightweight, Smooth Ride
Uncomfortable Saddle
Best Uses:
Retirement present to myself. Traded up from a Fuji aluminum frame to the Trek carbon frame. I have another carbon frame and once you go carbon, you don't go back.
by Retired Guy from Columbus, OH

Jun 02, 2016

Good bike for the price

Lightweight, Quick And Fast, Nimble
Uncomfortable Saddle
Best Uses:
Road Bike
Retirement gift to myself. Good deal on my Fuji trade-in. Started out with size 58cm and it didn't feel right. No problem with returning the bike for size 60cm. Good fit, smooth and fast ride and will be better when change to a comfortable saddle. I like comfort and speed at my own pace.
by Retired Guy from Columbus, Ohio

Sep 24, 2015

I love this bike great climbing and all around good

Fast, Smooth, Light Climber
Best Uses:
I climb alot with this bike I do distance to and it is a smooth ride all round very fast I've put about 700 miles on it in 2 months and love it
by Keith from Utah

Jan 26, 2015

Great entry level carbon road machine!

Light Weight, Great handling
Best Uses:
Road cycling
This bike is awesome! I have already racked up nearly 600 miles in 2 months on this bike. It accelerates, climbs, and handles very well. The black and white color scheme looks great.
by Jim from Orlando, FL


Trek 300 Series OCLV Carbon w/E2, BB86.5
Trek Emonda carbon
FSA integrated
Bontrager, tubeless-ready
Bontrager aluminum
Bontrager R1 Hard-Case Lite, 700 x 23c
Shimano Tiagra
Front Derailleur
Shimano Tiagra
Rear Derailleur
Shimano Tiagra
Rear Cogs
Shimano Tiagra, 10-speed: 11-28
Shimano Tiagra
Bontrager Race VR-C
Bontrager Microfiber
Bontrager Elite
Brake Levers
Shimano Tiagra
Shimano Tiagra
Bontrager Paradigm 1
Bontrager aluminum