Genesis Core 30 review

Burly but adaptable rider’s friend

Our rating 
4.0 out of 5 star rating 4.0
GBP £831.91 RRP | USD $1,259.17

Our review

Relaxed, enjoyable and surprisingly happy on the climbs for a bike with such a substantial build
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The Core 30 from small UK-designed brand Genesis scored highly with our testers, packing in plenty of spec for the money.


Ride & handling: Adaptable point-shoot-and-play hardtail

We back-to-back our test bikes as often as possible for accurate comparisons, and initial impressions of the Core 30 didn’t sit comfortably with the pep of the shorter travel frames on test. Perseverance paid off however; after a few more hours in the woods the Core started to spill the beans.

Crunching the fork travel to an automatic minimum for ascents really doesn’t work; it’s much happier climbing at around 110mm than a bike with its nose this far in the clouds has any right to be.

Descents were equally muddied at first and we wondered if slow and calm would morph into slovenly and sluggish. Worries were unfounded because we ended up really loving the surefooted way that the Core descends.

The capable fork and balanced frame make for a stable, easy ride that planted itself squarely on the best line with minimal forcefulness required. Shoving weight forwards on the fork livened things up but wasn’t necessary except in a tight squeeze.

Genesis core 30: genesis core 30
Russell Burton

Frame: Neat, purposeful and capable of taking some abuse

Triple-butted aluminium trims some weight, and top and down tube gussets drop a nod to the Core’s tougher tendencies.

The 27.2mm seatpost is incongruous slotted into an otherwise chunky frame but does a good job of removing some of the sting out of the oversized tubing used in the back end.

The hefty coffin-profile down tube keeps everything straight, with elegant CNC dropouts topping off a neat, purposeful frame.

U-Turn adjust fi ne tunes the ride feel, up or down: u-turn adjust fi ne tunes the ride feel, up or down
Russell Burton

Equipment: Grippy tyres plus SPDs, but budget shows in brakes and drivetrain

Continental’s Mountain King tyres roll smoothly and dig in where required. The RockShox Recon fork is adaptable but not particularly plush, and suffered from a sticky travel adjust dial.

Shimano drivechain parts worked well, but the prevalence of functional but portly Deore highlights the pennies saved on the pricetag.

A 180mm rotor up front made modulation a breeze but the Shimano Deore 575 brakes failed to develop any significant bite, staying spongy despite a checkover with the bleed kit.


Wheels stayed true throughout despite weathering the Core’s enthusiasm for taking the straight line over boulder drops and PD-M520 SPD pedals are a nice touch.

Conti mountain kings offer good all-round grip: conti mountain kings offer good all-round grip
Russell Burton

Product Specifications


Name Core 30 (09)
Brand Genesis Bikes

Available Colours Matte Black
Rims Alex XD-Lite Disc 32h black
Seat Tube (in) 17.5
Chainstays (in) 16.65
Bottom Bracket Height (in) 12.25
Brake Levers Shimano M575
Weight (lb) 28.1
Year 2009
Weight (kg) 12.7
Stem Genesis 6061 31.8mm
Shifters Shimano Deore Rapidfire
Seatpost 6061 T6 Aluminium 27.2mm, twin bolt micro-adjust, 400mm
Seat Angle 73.25
Saddle Genesis MTN2 Cr-Mo rail
Rear Hub Shimano M495 Centre-lock Disc
Available Sizes 16 Inches 17.5 Inches 19 Inches 20.5 Inches
Rear Derailleur Shimano SLX Shadow
Pedals Shimano PD-M520
Head Angle 70.25
Handlebar Genesis 2014 Lo-rise 31.8mm
Front Hub Shimano M495 Centre-lock Disc
Front Derailleur Shimano Deore
Frame Material Core-Series ALX9 TB Aluminium, disc-only
Fork Rock Shox Recon 335 U-Turn 85-130mm, Motion Control
Cranks Shimano Deore 532 44/32/22
Cassette Shimano Cassette HG50 11-32 9sp
Brakes Shimano M575 disc, 180mm front rotor
Bottom Bracket Shimano Deore External Bearing
Top Tube (in) 23