Kona One 20 Deluxe review

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£1000

The One20 Deluxe gets hydraulic discs over the basic One20

BikeRadar verdict

60.0 out of 5 stars

"Some minor spec upgrades over the cheaper One20 really can’t justify the higher price"

Tuesday, March 17, 2009 8.00am By

Kona’s do-anything One20 Deluxe is a step up from the entry-level One20 but, oddly, offers little in the way of spec improvement aside from included clipless pedals and an upgrade to hydraulic discs. It has the potential to be an excellent all-rounder, but it badly needs a fork that works – the RockShox Dart supplied simply can’t handle 120mm of travel. The basic One20 would make a better buy.

Ride & handling: Perfect weight distribution and smooth suspension, but fork lets the side down

Kona have a reputation for building bikes that handle well with no vices. The One20 Deluxe doesn’t disappoint in this department, with just-so weight distribution and a feeling that it’ll go wherever you point it without complaint. 

The rear end works well too, sucking up momentum-robbing wheel-stoppers on the climbs and smoothing over all but the worst of the hits on the descents.

The bad news is that the RockShox Dart 2 fork all but wrecks everything that we like about the Deluxe. With a 12-stone rider throwing caution to the wind on one of our favourite rocky test descents, we got a measly 80mm out of the quoted 120mm travel. 

It feels harsh, twangy and frankly out-faced at high speeds. You can replace the stock spring kit with a softer one, but that doesn’t solve the flex problem.

A magnesium one-piece rocker aids rear stiffness: a magnesium one-piece rocker aids rear stiffness

Frame: Classic Kona full-suspension design with decent budget shock

In common with its cheaper One20 stablemate, the Deluxe gets a 7005 aluminium tubeset with curved, crotch-clearing top tube and subtly shape-shifting down tube. 

The rear end is classic Kona full-suss, with an asymmetric swingarm and straight seatstays driving a one-piece magnesium rocker linkage pivoting just aft of the seat tube.

Rear suspension duties are handled by a RockShox Bar 2.1 air shock. It’s a basic unit with just a rebound adjuster to keep knob-twiddlers occupied, but for a budget shock it’s a decent performer.

Equipment: Decent budget kit – except for the twangy suspension fork

Up front, the RockShox Dart 2 fork's skinny stanchions and lowers give it a gangly look that’s matched by a noticeably twangy feel through rough sections of trail, and the stock spring is simply too stiff unless you’re both overweight and prone to riding rocky trails with little regard to personal safety.

Clipless pedals and Shimano hydraulic discs are what we’d expect at the price, but otherwise the kit’s all but identical to the base One20 we tested recently – which is to say that it all works fine. The complete bike weighs in at 14.3kg (31.5lb).

There’s plenty of stack adjustment for perfect set up: there’s plenty of stack adjustment for perfect set up

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Specification

Name:
One 20 Deluxe (09)
Brand:
Kona
Price:
£1000

Available Sizes:
14 Inches 16 Inches 17 Inches 18 Inches 19 Inches 20 Inches 22.5Inches
Bottom Bracket:
FSA Powerdrive
Brakes:
Shimano M486 Hydraulic Disc
Cassette:
Shimano Deore (11-32, 9spd)
Cranks:
FSA Alpha Drive
Fork:
RockShox Dart 2 w/Turnkey 120mm
Frame Material:
Kona Race Light 7005 Aluminum Butted, 5" Travel
Front Derailleur:
Shimano Deore
Front Hub:
Formula Disc
Front Tyre:
Ignitor
Front Tyre Size:
26x2.1
Handlebar:
Kona XC/BC Riser
Head Angle:
68.5
Rear Derailleur:
Shimano LX
Rear Hub:
Shimano M475 Disc
Rear Shock:
RockShox Bar 2.1
Rear Tyre:
Ignitor
Rear Tyre Size:
26x2.1
Rims:
Alex Ace-18 r
Saddle:
WTB Rocket V saddle
Seat Angle:
72
Shifters:
Shimano Deore
Weight (kg):
14.3
Year:
2009
Chainring Size (No of Teeth):
22 32 44
Weight (lb):
31.5
Bottom Bracket Height (in):
14.2
Chainstays (in):
17
Seat Tube (in):
19.25
Top Tube (in):
23.6
Wheelbase (in):
44.1

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