WHEELSET DISCUS 45/40 LTD 3T

3T designs for the real world, and for the gravel roads in that world, people want to use 700x35-40c tires. It’s useless to put a narrow aero rim behind such a tire. You’d be adding the weight without the aero benefit of such a wheel as the airflow never really “sees” the rim.

After 3T tested two dozen prototype wheels in the tunnel, the Discus 45|40 LTD was born. 45mm deep for good aerodynamics without excessive cross wind vulnerability. 40mm wide to match up those 35-40mm tires. The result is speed never seen before on gravel roads. And while the shape is optimized for the 3T Exploro, the Discus 45|40 LTD makes any gravel bike faster.

HUGE INNER WIDTH: At 29mm, the Discus 45|40 has by far the widest inner width of any (aero) gravel rim. That means less tire flop, so your cornering is more precise as the tire doesn’t roll over the rim’s edge.
HOOKED ON SAFETY: Hookless designs save a few grams and are a good choice for low-pressure applications. But at higher pressure, hooked rims provide additional safety. Yes, it make manufacturer more complicated and expensive, but it’s the correct engineering solution.
SAFETY RIDGE: With tubeless tires, rolling resistance is lower and flats are very rare. But when you do flat your road or gravel tire, a safety ridge keeps the tire on the rim for safety and to avoid damage (they're often skipped to save some weight & make manufacturing easier but again, 3T relishes the challenge).
CARBON-TI HUBS: : Carbon-Ti makes some of the lightest and most sophisticated hubs in the bike industry. 3T used them for a long time on their own wheels and decided that with the Discus 45|40 LTD being the ultimate wheels, they deserved the ultimate hubs.
SEALANT-RESISTANT: You may have heard of wheels destroyed by aggressive sealant. That’s why 3T uses chrome-plated brass nipples (much more durable than alloy) with stainless steel washers & spokes. For best results, 3T recommends avoiding alkaline sealants with ammonia or sodium hydroxide.
FREEHUB OPTIONS: The Discus 45|40 wheelset is available with standard and xD-R drivers (select the version you need when ordering). There is also a conversion kit available should you want to switch or upgrade to a different driver system in the future.

DETAILS:
- Rim size: 28”/700c, 40mm wide, 45mm deep
- Rim Spec: Tubeless-Ready Clincher, specific angle drilling
- Rim material: Unidirectional carbon - ultralight layup
- Spokes: Sapim CX-Ray or D-Light Straight-pull, stainless steel. black finish, double butted, 24 Front/24 Rear
- Hubs: Carbon-Ti Hubs (Chris King, Industry Nine or Carbon-Ti coloured hubs customization possibile)
- Nipples: Sapim chrome-plated brass
- Front Hub spec: Thru-axle 100x12mm
- Rear Hub spec: Thru-axle 142x12mm
- Rear Hub compatibility: 10/11s Shimano freewheel or SRAM XDR Driver body included
- Wheel weight (+/-5%): 1665g