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.

View available K2 products

Description
Specs
Customer Reviews
Related Items

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

An oversize shipping charge of $60 applies to this item (plus regular shipping fees). Or ship it FREE to any REI store for pickup.
Read more about shipping options.

K2 Astral 4.0 Bike - '08 Closeout Specs

Specification	Description
Frame	7005 Aluminum
Fork	Aluminum
Crankset	Truvativ Isoflow 3.0, 52/42/30
Shifters	Shimano R-440-8 Rapidfire Plus, for flat bar road bikes
Brakes	Tektro RX-1
Brake levers	Tektro alloy reach adjust
Front derailleur	Shimano FD-R443
Rear derailleur	Shimano Sora
Headset	1-1/8'' threadless
Bottom bracket	Sealed cartridge
Rear cogs	SRAM PG-850, 12-26, 8-speed
Front hub	Alloy double-sealed
Rear hub	Alloy double-sealed
Rims	Alex DA16
Tires	Kenda Kwick Roller, 700x28
Stem	Alloy threadless
Handlebar	Alloy flat bar with ergonomic alloy bar ends
Seat post	6061-T6 aluminum microadjust
Saddle	K2 Sport Fitness
Pedals	Resin with toe clips
Chain	KMC 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

Displaying review 1

Jul

2009

(3 of 3 customers found this review helpful)

4.0

Great Bike, very happy

By Pubcraw1er

from Cincinnati, Ohio

About Me Casual Cyclist

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.