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Castelli

Castelli BTW Speed Suit Men's

Castelli BTW Speed Suit Men's

Regular price $579.90 NZD
Regular price $579.90 NZD Sale price $579.90 NZD
Rouleur Online Price Sold out
Taxes included. Shipping calculated at checkout.
Variant
Size chart Size chart icon

Size chart

Tops
Men's Sizechart
HOW TO MEASURE

Grab a tape measure, write down the measurements and compare with our size chart for the right size. For best results, take measurements over your underwear. If your measurements fall between sizes, we suggest that you size up for a better fit.

1. CHEST

Holding the tape horizontally measure under your armpits with your arms relaxed at sides, around the fullest part of your chest.

2. WAIST

Holding the tape horizontally measure around your natural waistline, keeping the tape a bit loose.

 

 Bottoms
Men's Sizechart

HOW TO MEASURE

Grab a tape measure, write down the measurements and compare with our size chart for the right size. For best results, take measurements over your underwear. If your measurements fall between sizes, we suggest that you size up for a better fit.

1. HIPS

Holding the tape horizontally measure around the largest part of your hips keeping the feet close together.

2. INSEAM

Using pants that fit well, measure the crotch seam to the ankle bone

 

Gloves
Men's sizechart 

1. CIRCUMFERENCE OF THE HAND

To determine the correct size, measure the circumference of your hand with a tape measure or a length of string and a ruler.

 

Socks
Men's Sizechart

1. SHOE SIZE

Sock sizes are based on shoe size.

 

Shoe covers
Men's Sizechart

1. SHOE SIZE

Shoecover sizes are based on shoe size

 

Tops
Women's Sizechart

HOW TO MEASURE

Grab a tap measure, write down the measurements and compare with our size chart for the right size. For the best results, take measurements over your underwear. If your measurements fall between sizes, we suggest that you size up for a better fit.

1. CHEST

Holding the tape horizontal measure under your arms, around the fullest part of your chest.

2. WAIST

Holding the tape horizontally measure around your natural waistline, keeping the tape a bit loose.

 

Bra
Women's Sizechart

HOW TO MEASURE

Grab a tape measure, write down the measurements and compare with our size chart for the right size.

1. BREAST

Measure directly over the widest point of the breast, making it adhere to the body, making sure it is well aligned on the back.

2. UNDERBUST

Stand in front of a mirror wearing an unpadded bra. Pass the tape measure under your breasts keeping it as snug as possible, making sure it is well aligned on the back.

 

Bottoms
Women's Sizechart

HOW TO MEASURE

Grab a tape measure, write down the measurements and compare with our size chart for the right size. For best results, take measurements over your underwear. If your measurements fall between sizes, we suggest that you size up for a better fit.

1. HIPS

Holding the tape horizontally measure around the largest part of your hips keeping the feet close together.

2. INSEAM

Using pants that fit well, measure the crotch seam to the ankle bone

 

Gloves
Women's Sizechart

1. CIRCUMFERENCE OF THE HAND

To determine the correct size, measure the circumference of your hand with a tape measure or a length of string and a ruler.

 

Socks
Women's Sizechart

1. SHOE SIZE

Sock sizes are based on shoe size.

 

Shoe covers
Women's Sizechart

1. SHOE SIZE

Shoecover sizes are based on shoe size.

 

Kids
Sizechart

 

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    Easy Returns – Hassle‑free returns on unused gear.

CFD and significant testing create the fastest road racing suit, optimized for high speeds when the race splits apart.

Product features

  • Made to be the fastest option for high-speed road racing
  • Dimpled shoulder and sleeve fabric for boundary-layer aerodynamics
  • Smooth body for reduced skin friction and laminar flow
  • Premio-based short portion for aero comfort
  • Progetto X2 Air seamless seat pad for all-day comfort
  • 2-way YKK® zipper
  • Lasered tone-on-tone logos at back of leg and stitched scorpion patch at top of back
  • Weight: 242gm
  • Temperature 14°C - 32°C / 57°F - 90°F
  • Fit: Aero

PUSHING THE LIMITS OF SPEED Military test pilots in the 1960s coined a phrase for pushing the aircraft to its limits, going all in, and risking their lives at the edge. The throttle levers with the knobs or balls at the top were pushed all the way forward against the cockpit wall: Balls to the Wall. BTW is for those days, those races where you never drop out of your 53x11 or 12, when you're sometimes in the gutter or cornering at the limit of adhesion. When you're all in, taking risks. Like the planes that inspired the phrase, the BTW Speed Suit uses cutting-edge research and construction in the pursuit of speed: CFD analysis, 3D test mannequins, fabric research and testing, numerous wind tunnel tests, and then testing in the WorldTour. At the beginning of the research project, we were set to sacrifice comfort in the name of speed, but in the end we kept fully breathable, fully stretchy fabrics. There’s a little more Lycra®, so you won’t stay quite as dry, and the shoulder fabric is slightly heavier. And it doesn’t have the Sanremo front opening, so your pee stops will be a bit more challenging. All that is a small price to pay for an incredible THREE PERCENT total aero drag savings compared to the fastest-in-class Sanremo Speed Suit. That 3 percent is at higher speeds, especially in the 45-65 kph range, when it really counts. You can get the BTW suit in your team graphics through Castelli's custom program, or this stealthy ninja black version to tear up your local Strava segments or group rides.

Description

Shipping

Click & Collect – Free
Order online & collect at our Onehunga store.

NZ Shipping Costs

  • General Items: $8/item
  • Bikes & Frames: $100 (North Island) / $120 (South Island)
  • Large/Bulky Items: $30 (North Island) / $60 (South Island)
  • Helmets: $20 (North Island) / $25 (South Island)

Rural: Extra fee applies — select “Rural Delivery” at checkout.

International Orders – Contact info@rouleurcycles.co.nz for a quote.

Bike Shipping

  • Fully assembled, tuned & safety‑checked before dispatch.
  • Carefully boxed (minimal reassembly required).
  • Recommend mechanic check before first ride.

Timeframes

  • General: 3–5 working days (+1–2 for rural)
  • Bikes: 5–7 working days (up to 10 remote) + prep time for build/boxing
  • Delays may occur during holidays or courier disruptions.

Tracking & Issues

  • Tracking emailed once dispatched.
  • Contact the courier first for delays. Need help? Email or call us.
  • Report damaged/lost parcels within 3 days.

No PO Boxes – Physical addresses only.

Why Buy From Rouleur?

Trusted NZ Bike Experts – Locally owned & operated with years of experience helping Kiwi riders get the most out of their bikes.

Custom Builds & Personal Fitting – From road to e‑bikes, we tailor every build to your riding style and goals.

Fast, Reliable Shipping – In‑store stock ships next business day. Supplier stock delivered in as little as 3–5 days.

After‑Sales Support That Rides With You – From servicing to upgrades, our workshop team is here for the long haul.

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