Trek X-Caliber 8

2018
 
4.5 stars
 (9 Reviews)
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  • Trek X-Caliber...

Description

Full of fast, built to last

Caution: X-Caliber will get you hooked. It packs all of Trek’s XC race hardtail experience into a light, fast bike that pairs the right wheel size with each frame size.

Nothing beats the efficiency, simplicity, and straight-up fun of an X-Cal hardtail in 29er or 27.5-inch. Great for XC racing, or simply shredding singletrack.

- All-new lightweight Alpha Gold Aluminum frame delivers a phenomenal ride quality
- Shorter chainstays and Boost141 hub spacing for increased agility and clearance for wider tires
- Updated geometry and E2 tapered head tube for more confident handling
- Sleek internal routing protects cables and accommodates dropper post upgrades

Features & Info

Geometry chart

Trek X-Caliber 8 geometry chart

Why 27.5-inch/650B?

27.5-inch (650B) wheels explained
Wheel size:
Sizes 15.5: 27.5-inch
Sizes 17.5–23: 29-inch

Consumer Reviews

 
4.5 stars

(9 reviews)

77% of respondents would recommend this to a friend.

Pros

  • Lightweight  (5)
  • Comfortable  (4)
  • Stylish  (2)
  • Frame, weight, price 
  • Confidence Building 
  • Good Value For Price 

Cons

  • Seat  (2)
  • Pedals, seat, tires 
  • Pedals 
  • Orange Paint 
  • Bottom Bracket 
  • Saddle 

Best Uses

  • Trail  (2)
  • Single track, trails, city, woods, wherever 
  • Moderate jumps 
  • Mountain biking 
  • Racing 
  • Anywhere 

 
2.0
Feb 13, 2018

Priced to high!!

Pros:
Cons:
Best Uses:
Your price is to high for a 2017 on the xcaliber 8 I'm getting a 2018 for this price.....it's not a deal!!
by Shrek from G.R. Michigan

 
4.0
Aug 28, 2017

Great 29er bike for the buck

Pros:
frame, weight, price
Cons:
Pedals, seat, tires
Best Uses:
Single track, trails, city, woods, wherever
I've had the Xcal 8 29er for almost two years and w/o any issues. I'm 6'5', 220 pounds, and ride the 21.5" frame. Upgrades have been made to the pedals, grips, and seat.
by The Bster from Midlo. Va

 
5.0
Apr 05, 2017

Bikepacking and Day Trip Capable

Pros:
Durable, Comfortable, Value, Components
Cons:
Pedals, Saddle
Best Uses:
Dirt roads, Roots, Swamps/mud, Bikepacking, Day trips, Moderate jumps
Man, where to begin? I've put roughly 700mi on this guy in the last few months and have loved (most of) them. Most recently I used it to do the HuRaCaN300 in Central Florida and it performed admirably especially for a mid-level rig. This is my first 29er and has served as a great entry point. I've taken it through rooty singletrack, dirt downhills, swamp bogs with Cypress knees, fluffy sand, wet clay roads, etc. and have had little issues. I'm really surprised that the front ring shifter failed on me so quickly but never to fear; Trek warranted it with little questions via my local shop. Both derailleurs are crisp and responsive and the brakes are powerful. Naturally, you'll need to replace the platform pedals and maybe even the saddle if you're going to be doing longer trips but that's to be expected. I couldn't be happier with my purchase!
by DSailor09 from Nashville, TN

 
5.0
Aug 03, 2016

Great Bike

Pros:
Lightweight, Black Gloss Paint, Tires, Front Shock, Shifters
Cons:
Seat, Orange Paint
Best Uses:
Anywhere
I like the bike so far. The seat is not so good. The bikes forks have eaten all the curbs and stumps I've come across. The people at Bike Barn in Atascocita let me try all the bikes in my price range and I finally zeroed in on the x caliber.
by screementree from Atascocita,Tx

 
4.0
Jul 04, 2016

Great Bike!

Pros:
Cons:
Best Uses:
I am 6 foot 3 and 250 pounds. I was looking for something that could handle a big dude. I have beat the snot out of it, and have done over 40 miles just this weekend. ( on some pretty rad Colorado trials) nice, smooth, and most importantly sturdy. I love this bike!
by Mikey f from Broomfield, co.

 
4.0
Jun 03, 2016

Love my X cal 8

Pros:
Great Beginner Race Bike, Comfortable, Good Value For Price, Stylish, Lightweight
Cons:
Best Uses:
Mtn Biking, Trail
Love my x cal 8!!! I ride this bike at least three times per week in single track courses and on the road. It has always handled everything I throw at it very well. It is pretty fast and agile but gets a little shaky around very tight sections. Good components for the dollar but I will be upgrading some of the drive train as stock parts start to wear out over time. Great bike :)
by Tim from Dorchester Ont, Canada

 
5.0
Nov 05, 2015

My first MTB

Pros:
Lightweight, Good value, Looks Good, Stylish
Cons:
Seat
Best Uses:
Trail, Mountain biking
I love my xcaliber for my first mtb bike I think it's really good, I replaced the saddle it was really uncomfortable but everything ails is really good, my feature upgrades will be to tubeless tires
by Alex trek from Fontana CA

 
4.0
Oct 21, 2015

Great

Pros:
Comfortable, Lightweight, Confidence Building
Cons:
Bottom Bracket
Best Uses:
Riding, Racing
I bought this bike and raced it in the 29 Mile Ore-to-Shore in Marquette, MI. Great bike and great race. The only issues I had were with the bottom bracket and front brake. The bottom bracket kept coming loose, even after multiple adjustments. It came loose again at the starting line of the Ore-to-Shore, but tightened on its own during the first mile of the race. It's been good since then. The front brake is noisy. I'll try a new disc.
by LawDog from Houston, TX

 
4.0
Dec 15, 2014

just bought it

Pros:
Comfortable, Lightweight
Cons:
Best Uses:
just bought it yesterday. minimal seat time thus far. very comfortable, good components.
by David from Austin, TX

Specifications

Frame
Alpha Gold Aluminum, E2 tapered head tube, internal derailleur & dropper post routing, rack & kickstand mount, Boost141, G2 Geometry
Fork
RockShox Recon 30 Silver, air spring, preload, rebound, TurnKey lockout, E2 tapered steerer, G2 Geometry w/51mm offset on 29ers, 100mm travel (13.5: 80mm travel)
Headset
Semi-integrated, 1-1/8" top, 1.5" bottom
Axles
Rear: 141 QR
Rims/Wheels
Bontrager Duster Elite Tubeless Ready 28-hole, tubeless strips and valves sold separately
Hubs
Front: Formula DC20 LW alloy
Rear: Formula DC2241 alloy, Boost141
Tires
Bontrager XR2, 29x2.20" (13.5 & 15.5: 27.5x2.20")
Crankset
Race Face Ride
Chainrings
36/22
Bottom Bracket
Sealed cartridge
Chain
KMC X10
Front Derailleur
Shimano Deore M6020
Rear Derailleur
Shimano Deore XT, Shadow
Cassette/Rear Cogs
Shimano HG50, 10 speed: 11-36
Shifters
Shimano Deore M6000, 10 speed
Handlebars
Bontrager alloy, 31.8mm, 5mm rise, 720mm width
Tape/Grips
Bontrager Race Lite, lock-on
Stem
Bontrager Elite, 31.8mm, 7 degree
Brakes
Shimano M315 hydraulic disc
Pedals
Wellgo nylon platform
Saddle
Bontrager Evoke 1.5
Seat Post
Bontrager SSR, 2-bolt head, 31.6mm, 12mm offset