2019-06-01_220_Triathlon

TT HELMETS

Withaeroroadhelmetsintheascendency,is therestilla placeforthe

time-triallidintri?ChrisHovendenputsfourtothetesttofindout

hetAIL

tubbytailsfavourriders

whomovetheirheads,

whilelongtailsbenefit

strongaeroposition.

EARCOVERS

Forquicktransitionsit’s

vitala helmethassoftand

flexibleearcoverssoit

canbeputonat speed

vents

Ideally,a helmetwillhavea

goodventilationsystemto

allowairtoflowandkeepthe

ridercomfortableonhotrides

66 / / June 2019

KIT ZONE

THESECRETSTUDIO

NET

£179.99ThemassiveTaiwanesebike

brand,Giant,makessomebold

claimswhenit comestothe424g

RivetTT,including‘unbeatable

performanceforTTortriathlon’.

TheRivet’saeroprofile– complete

withitsstubbytailincontrasttothe

othersontest– hasbeenengineered

andfinessedthroughComputational

Fluid Dynamics, the result being a

helmet that’s said to be effective in

real-world conditions. Compared to

thelongertailedofferingsonthe

facingpage,it definitelyfavours

riderswitha tendencytomovetheir

head,butlosesaeropointswhenin

theoptimumaeroposition.

Thesoftandflexibleearcovers,

alongwiththeCinchProfit

retentionsystem,aida swift

T1whileofferinga comfortable

fit. The rear dial is smaller than

other similar retention systems, but

still allows easy adjustment on the

BUYER’S GUIDE

78

%

VERDICTGOOD COMFORT

AND VENTILATION, BUT NOT

THE MOST AERO

GIANT

RIVET TT

fly. Impressive ventilation is

provided by four ports at the fore

and channels that run through the

helmet, which encourage airflow

over the head and out through the

larger exit port at the rear.

giant-bicycles.co.uk