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K2 Astral 4.0 Bike - '08 Closeout

K2 Astral 4.0 Bike - '08 Closeout

Item # 780687
!
This item is currently sold out or unavailable online.

For your reference, this page contains historical product information.

The K2 Astral 4.0 is so easy and fun to ride, you'll ride yourself into shape and wonder how it happened!

  • K2 Reflex Road frame is constructed of 7005 aluminum tubing butted (thick-walled) at the ends for strength
  • Aluminum frames are vertically stiff, which results in efficient energy transfer from legs to drivetrain, quick acceleration and power for climbs
  • Gently curved seat stays reduce road shock at the back end and allow rider to remain seated for long periods of time
  • Power the bike through its Truvativ Isoflow 3.0 crankset and SRAM 12-26, 8-speed cassette
  • Shimano derailleurs and Rapidfire Plus shifters operate 24 smooth-shifting gears for easy transitions from steep climbs to fast downhills
  • Tektro RX-1 brakes and alloy reach adjust brake levers allow controlled deceleration
  • Double-wall rims, double-sealed hubs, stainless spokes and tenacious Kenda Kwick Roller tires roll smooth and fast, and withstand road abuse
  • Flat handlebar provides a comfortable, elevated ride and a wide field of view; K2 Sport Fitness saddle combines support and comfort
  • Includes platform pedals with toe cages
  • Closeout


After its initial break-in period you might notice your bicycle performing less responsively than the day you brought it home. Not to worry, this is typical of all new bicycles and simply reflects that cables have stretched or their housings have seated themselves into final position. To keep running at peak performance, all REI bicycles come with a FREE warranty tune-up, which should be accomplished between the first 100-200 miles of riding or after the first two months if you're accumulating miles less quickly. Contact your nearest REI bike shop for details and an appointment for this important service.

Imported.

Item 780687

K2 Astral 4.0 Bike - '08 Closeout Specs

Specification

Description

Frame7005 Aluminum
ForkAluminum
CranksetTruvativ Isoflow 3.0, 52/42/30
ShiftersShimano R-440-8 Rapidfire Plus, for flat bar road bikes
BrakesTektro RX-1
Brake leversTektro alloy reach adjust
Front derailleurShimano FD-R443
Rear derailleurShimano Sora
Headset1-1/8'' threadless
Bottom bracketSealed cartridge
Rear cogsSRAM PG-850, 12-26, 8-speed
Front hubAlloy double-sealed
Rear hubAlloy double-sealed
RimsAlex DA16
TiresKenda Kwick Roller, 700x28
StemAlloy threadless
HandlebarAlloy flat bar with ergonomic alloy bar ends
Seat post6061-T6 aluminum microadjust
SaddleK2 Sport Fitness
PedalsResin with toe clips
ChainKMC Z72

K2 Astral 4.0 Bike - '08 Closeout Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
K2 Astral 4.0 Bike - '08 Closeout
 
4.0

(based on 1 review)

Reviewed by 1 customer

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(3 of 3 customers found this review helpful)

 
4.0

Great Bike, very happy

By Pubcraw1er

from Cincinnati, Ohio

About Me Casual Cyclist

Site Member

Pros

  • Comfortable
  • Fast
  • Good Geometry
  • Handles Well
  • Lightweight
  • Responsive

Cons

  • Uncomfortable Seat

Best Uses

  • Casual Riding
  • Climbing
  • Commuting
  • Exercising

Comments about K2 Astral 4.0 Bike - '08 Closeout:

I bought this bike to get back into riding and to add more cardio to my weekly workouts. I'm 6'4", 200lbs and the XL is just large enough for me. The bike is incredibly lightweight, even for an aluminum frame. The gears shift really well and the bike is great for the river valley that I ride in a lot b/c it handles hills really well between the gearing, weight, and handle bars which are great for when you need to be more aggressive. If you're taller than me, this bike won't be large enough for you, but I'd say that the XL is great for anyone 6'0" to 6'4".

By the way, I was a little hesitant about the color from the pictures on the website, but the bike is actually really stylish looking.

Oh, and the bike seat sucks. As with pretty much every road bike out there, you'll probably be putting a cover on it or replacing the seat right away. I had to replace mine within the first month/100 miles.

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