Important:
This tool provides a guideline recommendation based on the measurements you enter.
We cannot guarantee the recommendation is perfect —
flexibility, riding style, saddle setup, and personal preference matter.
Your final configuration and component choices
(size, stem, bar, cranks, spacers) are always your responsibility.
How to measure:
Stand barefoot against a wall. Look forward. Measure to the top of your head.
How to measure:
Barefoot. Place a book firmly into your crotch (like a saddle)
and measure from floor to the top edge. Most people are 65–95 cm —
if yours is far from this, check you measured in cm, not inches.
How to measure:
Measure bone-to-bone across shoulders
(acromion to acromion), not shirt seam to seam.
Bar width is measured center-to-center (c-c).
Riding positioni
What this affects:
This slider affects frame size, stem and spacers.
In a size-overlap zone a more comfortable position picks
a bigger frame + shorter stem (higher front end);
an aggressive position picks a smaller frame + longer stem
(lower front end).
Endurance
ComfortEnduranceRace
i
What this affects:
With clip-on aero bars your forearms rest on pads and your grip moves forward.
We then recommend a shorter stem and, between two sizes, the bigger frame —
a higher and more stable front end is easier to hold in the aero position.
The saddle often moves slightly forward and up in aero use.
Extra measurement (optional)
How to measure:
Measure suprasternal notch (base of throat) → crotch
(same point as inseam). Tape runs along the front of your body.
This refines frame size and cockpit/stem.
Most people are 45–65 cm — if yours is far from this,
check you measured in cm, not inches.
How to test:
Stand with straight legs and reach toward your toes.
Can't get near = stiff.
Reach your toes = average.
Palms flat on the floor = supple.
This tells us how low a riding position you can hold comfortably.
Your recommendation
Recommended size:
—
This is the bike frame size. Choose this when you order.
Saddle height:
—
Set your saddle to this height.
Measure from the top of the saddle down to the pedal,
with the pedal at its lowest point. Fine-tune to comfort.
Handlebar width:
—
Order a handlebar of this width.
Stem:
—
The short part that connects the handlebar to the frame.
Order this length.
Spacers:
—
Small rings under the stem that set the handlebar height.
Start with this amount.
Configurator link missing:
add configurator_url to the bike_model entry.
Tip: take a screenshot before going to the configurator.
Expected availability–
Missing components
Pay in parts – up to 36 months at 0% interest with Zaver financing.
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Estimated monthly payment–
Estimated total cost–
Product price–
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Monthly fee–/mo
Interest estimate–
This calculation is an estimate. Currency conversion is indicative. Final monthly payment and terms are shown at checkout before confirmation.
Read financing terms.
Kies bij het afrekenen je voorkeurspartner voor verzending. IKUISTA biedt flexibele leveropties via Vapaus en GoByBike, beide betrouwbare vervoerders. Kies de optie die het best past bij je locatie en planning. Elke vervoerder biedt betrouwbare tracking en vakkundige behandeling van je fiets of onderdelen, zodat je bestelling in perfecte staat aankomt.
Voelt je fiets binnen 30 dagen na levering niet goed, dan helpen we je om hem af te stellen. Zo werkt de Fit Guarantee
Rijd met vertrouwen. Raakt je frame beschadigd, dan vervangen we het tot 20% van de frameprijs. Zo werkt het
Hier kopen - Voeg restwaarde en gemoedsrust toe. De framegarantie gaat over op de volgende eigenaar. Zo werkt het
Ruil je Ikuista in voor een nieuwe, tegen een waarde die we na inspectie vaststellen. We nemen elke Ikuista terug, ongeacht de leeftijd. Zo werkt het
Elke fiets wordt op bestelling gemonteerd en afzonderlijk gecontroleerd voordat hij ons atelier verlaat. De geschatte verzendtijd is ongeveer 2 weken vanaf de aankoopdatum.
Lever de hele fiets in aan het einde van zijn leven. Niet demonteren, niet sorteren. Onze partner Kuusakoski recycelt alles, metaal en carbon, tot grondstof. Lees meer
Wheelset: Valois HBRD 45 Carbon Wheelset, 700C, 45 mm Rim Depth, 26 mm Internal Width, 31.5 mm External Width, Ratchet Hub System (36T Engagement), CenterLock Disc, Pillar Aero 1423 Straight Pull Spokes, Approx. 1540 g Wheelset Weight, Max System Weight 130 kg
Tires: Continental Grand Prix 5000 S TR Folding
Tire Size: 700×30C (30-622)
Tubeless Ready: Yes (Rim Tape Installed)
Tubeless Valves: IKUISTA 60 mm (Included, Not Installed)
Rotors: Shimano RT-CL800 CenterLock Ice Technologies Freeza, 160 mm Front / 160 mm Rear
COCKPIT
Cockpit: Valois Cˣ HBRD Integrated Carbon Cockpit
Saddle: IKUISTA Vael Saddle, 145 mm
Handlebar Tape: IKUISTA Performance Tape, 2.5 mm
ELECTRONICS
Battery: Shimano BT-DN300 Internal Battery
Charger: Shimano EW-EC300
ACCESSORIES
Bike Bell
Reflector Set
IKUISTA Bicycle Bag
Product Manual
WEIGHT
Claimed Weight: Approx. 7.74kg (Size M, Inner Tubes Installed, No Pedals)
WEIGHT LIMIT
Maximum System Weight: 120 kg (Bike + Rider + Cargo)
PRODUCT DISCLAIMER
Specifications, geometry, colors, graphics, components, weights, and pricing may change without prior notice.
Product images may show optional equipment, prototype components, or specifications not included in the final production model.
Equivalent or higher-specification components may be substituted due to continuous product development or component availability.
Claimed weights are based on pre-production samples and manufacturer measurements. Actual production weights may vary by frame size, paint finish, component tolerances, and production batch.
Tire clearance values are based on measured tire dimensions and may vary between manufacturers and wheel combinations.
Bicycle weights are stated without pedals unless otherwise specified.
Maximum system weight includes the bicycle, rider, clothing, accessories, luggage, and cargo.
MSRP pricing may vary by country, taxes, shipping costs, import duties, and dealer-installed options.
Geometrietabel
Fietsgeometrie en maten
Measurement
S
M
L
XL
XXL
A — Seat tube length
470 mm
495 mm
520 mm
545 mm
570 mm
B — Seat tube angle
74°
73.5°
73.5°
73.5°
73.5°
C — Head tube length
110 mm
125 mm
145 mm
165 mm
185 mm
D — Head tube angle
70.5°
71°
71.5°
71.5°
71.5°
E — Top tube length
521 mm
539 mm
553 mm
568 mm
583 mm
G — B.B. drop
78 mm
78 mm
78 mm
78 mm
78 mm
H — Chainstay length
435 mm
435 mm
435 mm
435 mm
435 mm
I — Fork offset
50 mm
50 mm
50 mm
50 mm
50 mm
J — Wheelbase
1011 mm
1020 mm
1030 mm
1046 mm
1061 mm
K — Reach
365 mm
373 mm
381 mm
390 mm
399 mm
L — Stack
542 mm
558 mm
579 mm
598 mm
617 mm
Inseam
75–80 cm
78–85 cm
82–88 cm
86–92 cm
89–95 cm
Rider height
163–173 cm
170–180 cm
178–187 cm
185–195 cm
190–200 cm
Geometrie van onderdelen
Geometrie van onderdelen
Measurement
S
M
L
XL
XXL
Spacers (mm)
30mm
30mm
30mm
30mm
30mm
Stem length (mm)
80mm
90mm
100mm
110mm
110mm
Handlebar width (mm)
400mm
420mm
420mm
440mm
440mm
Crank length (mm)
165mm
170mm
170mm
172.5mm
172.5mm
Front chainring
50-34T
50-34T
50-34T
50-34T
50-34T
Saddle height min (mm)
650mm
680mm
725mm
765mm
800mm
Saddle height max (mm)
705mm
755mm
790mm
830mm
865mm
Seatpost length (mm)
350mm
350mm
400mm
400mm
400mm
Producthandleidingen
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Getest door het tijdschrift Fillari in de gravelbike-vergelijking van 2026: de "Halo CX GRX 800 Di2 maakte indruk met een ontspannen rijgevoel en kwaliteitsonderdelen."
Ik moet zeggen dat dit, vergeleken met mijn eigen oude fiets, een totaal andere rijervaring is.
— AamulehtiTomi Pyy, journalist, Aamulehti, eerste rij-indruk, juli 2026
Spektri – Balanced Performance for Real-World Riding
Spektri is IKUISTA’s endurance-focused performance bike, designed for long days, varied road surfaces, and riders who value efficiency without aggression. The carbon monocoque frame combines stable handling with a relaxed yet responsive geometry, making Spektri fast enough for spirited group rides and comfortable enough for all-day adventures.
With generous tire clearance and a compliance-tuned frame, Spektri adapts easily from smooth asphalt to rougher roads and light gravel. It’s a versatile platform built for riders who want one bike that does everything well — without sacrificing ride quality or reliability.
Spektri C° Shimano Ultegra Di2 is a premium endurance road bike built for riders who want speed, comfort, and efficiency over long distances. It is designed for fast endurance riding and all-road performance.
The Spektri C° carbon frame combines compliance and stiffness for a smooth yet responsive ride. Shimano Ultegra Di2 delivers high-end electronic shifting, while the integrated cockpit and carbon wheels enhance aerodynamics and precision.
Built with a Spektri C° carbon frameset, Shimano Ultegra Di2 2x12 drivetrain, Valois HBRD 45 carbon wheelset, Continental Grand Prix 5000 S TR 32 mm tires, and Valois C∞ integrated cockpit. A lightweight setup focused on endurance speed and efficiency.
