Trek Marlin 4

4.0 stars
 (3 Reviews)
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Key features

- Ride the fastest wheel that fits with Smart Wheel Size
- Ride-tuned aluminum frame is XC light, mountain tough
- Extended size range gives you a better fit for a better ride
- Backed by Trek's limited lifetime warranty

Features & Info

Why 27.5-inch/650B?

27.5-inch (650B) wheels explained

Consumer Reviews

4.0 stars

(3 reviews)

66% of respondents would recommend this to a friend.


  • Stylish 
  • Breathability 
  • Durable 
  • Comfortable 
  • Lightweight 


Best Uses

  • Comfort 

Sep 12, 2017

Smooth Riding

Best Uses:
Bought the bike pre Hurricane Harvey and rode it everywhere after the flood. I love the way it handles, easy shifting gears, rides smooth even through knee high water, muddy trails and water logged grass. Light enough to lift over a highway median or a fallen tree.
by Bella from Buffalo Heights, Houston Texas

Jun 30, 2017

I would try a more bikes before deciding

Best Uses:
I haven't ridden in a while and have gained a lot of weight, so I didn't feel my 26" trek fuel 80 would hold up........I'm not convinced 29" bikes are the way to go....I'm 5'6"" the handling sucks and peddling is a pain........just to be sure I replaced my rear shock on my 26"" to lock out shock it doesn't bottom out due to my weight and the peddling effort seems natural. Plus it is more responsive in the twisteys
by Pills berry doboy from Forney,Texas

Jun 17, 2017

Sweet Ride

Breathability, Stylish, Comfortable, Lightweight, Durable
Best Uses:
The bike really is flawless beautiful ride & looks
by Chappell from Pittsford N. Y.