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Introducing the SECTOR 9i Wheelset:

29er Carbon Wheelset | Innegra Armoured Rims | 1700g | 29mm Internal | Boost | Trail & Enduro | Lifetime Warranty | SRP £1100

First, a little about us...

Sector Wheels is brought to you by the award-winning teams behind Kinesis UK and DMR. We’ve got a track record of creating industry leading products that win group tests and ignite the passion of riders all over the world. Our goal is to deliver innovative high-performance products that are value for money, and ready to stand the test of time. We may be relatively new as a wheel brand, but if you are familiar with DMR products you'll know that we build things to last...

Enough about that, what are these wheels?

We were looking at enhancing the structural properties of unidirectional carbon in the application of an MTB rim, with strength and impact resistance being primary considerations. Working closely with Paul Lew (composites and aerodynamics expert) we established that the introduction of Innegra fibres had the potential to significantly enhance the properties of an MTB rim. After a period of research and development, we present to you the 9i wheelset.

The 9i rim not only has the lightness and toughness we were looking for but has the additional benefit of significantly more compliance over standard carbon rims. The 9i wheelset has the lightness associated with a carbon wheelset, but with the ride quality of a premium alloy wheelset!

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TeXtreme® Spread Tow Innegra fabrics give the unique appearance of the rim

So what is Innegra?

Innegra is a fibre derived from polypropylene that exhibits some highly beneficial properties, including high strength-to-weight ratio, resistance to damage, vibration damping and energy dissipation. The TexTreme fabric used in the layup of 9i rim is a Spread Tow fabric built from a hybrid of Innegra and T700 carbon fibres. The Spread Tow layout is significant because it also contributes some positive attributes – the fibres are straighter (reduced crimp therefore higher strength) and it facilitates the use of less resin (lower weight). In the 9i rim the Spread Tow fabric is used on the outer layer of the rim, giving it the unique checkerboard pattern.


Spread tow fabrics are mechanically better than standard carbon fabrics for rim application

Sounds good, but what does that mean for a rim?

• Significantly more compliance...

Under a lab test the 9i rim was 50% more vertically compliant than a unidirectional T700 carbon rim of the same profile. This test involves loading the rim with a 100kg weight, in which the 9i rim exhibited a deflection of 15.74mm compared to 10.55mm on the standard T700 rim.

It is widely acknowledged that vertical compliance is important for damage reduction (less likely to crack), a reduction of fatigue and to improve traction. Such an improvement in vertical compliance also brings a radically improved ride quality to the 9i wheelset. The Innegra equipped rims do not have the associated harsh stiffness of regular carbon wheels.


Lovely riding wheels!

• Significantly more impact resistance...

In the lab the 9i rim was able to handle impacts of almost double the standard required for MTB wheels by the UCI. The 9i rim withstood an impact of 140J compared the UCI stipulated requirement of an 80J impact, making it 75% stronger than the UCI requirements. In real world terms, the 9i rim can handle the equivalent of dropping a 15kg weight from a height of up to 1.08 metres onto the bare rim, thus making it 18% stronger than a recognised leading competitor who has published their data.


Rock gardens? No problem

• Much less weight...

Despite offering strength and compliance advantages, the use of Innegra also allows the construction of an extremely lightweight rim. The Innegra equipped 9i rim weights just 428g (29”), and our complete wheelset weights just 1700g.


A wheelset for climbers to love

What about the rest of the wheel?

Every detail of our wheel builds is carefully considered, from the super smooth Revo Cream bearings to the straight pull triple butted Pillar spokes. And we back it all up with a lifetime manufacturing defect warranty.

Full specs:

Weight: 1700g (29” wheelset) | 428g (rim only)

Rim: 29mm internal - 35mm external - 25mm deep | Hookless | Tubeless ready | ETRTO compliant

Rim Material: T700 Unidirectional Carbon Fibre with TexTreme Spread Tow Hybrid outer layer

Spokes: Pillar 2016 triple butted | 28H Front/Rear | Straight pull | Three cross

Nipples: Brass

Hub: CNC straight pull | Revo Cream Bearings | Boost spacing | Superboost available on request

Freehub: 6 pawl, 72 tooth engagement (5 degree pickup) | HG, XD

Tyre compatibility: 2.2” to 2.6” tubeless or clincher

Warranty: Lifetime warranty | Crash replacement policy

What’s in the box: Pre-taped wheelset with valves and Effetto Mariposa sealant

Price: £1100 (wheelset), £450 (rim only)

Availability: Online from Sector website (under development) and your local bike shop

Free Shipping in UK and Europe from the Sector website

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I don't ride 29"/Boost, What about me?

We offer the 9i as rim only in 29" (32 hole, 28 hole), and 27.5" (32 hole) for those that want to build in a different configuration. The eagle eyed will notice that the bike in the photos is a Pivot Trail 429 which has a Superboost rear end. Needless to say we can build Superboost spacing wheelsets on demand! We will also be offering a 32 hole downhill rim only, coming soon!

Coming Soon: Something for the Big Hitters...

We will soon be releasing a downhill rim equipped constructed with Innegra. The DHi rim will be 33mm internal width, and capable of withstanding a whopping 180 Joule Impact (225% the UCI standard!)

Video & Photos: Roo Fowler

We Now Accept
V12 Finance

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