# IronDeer R50 SL vs Zipp 404, Roval Rapide, Dura-Ace and More: Carbon Road Wheels Compared

1160 g on our scale, 50 mm deep, 23 mm internal, carbon spokes, €1,200. The IronDeer R50 SL against eight well-known carbon road wheelsets, from the Zipp 404 and Roval Rapide to the €3,695 Campagnolo Bora Ultra.

[](https://irondeer.pt/contacts/team/maxim) Last updated  September 29, 2026

#Technology

#Tips

    [Share on X](https://twitter.com/intent/tweet?url=https://irondeer.pt/feed/irondeer-r50-sl-vs-zipp-roval-enve-road-wheels&text=IronDeer%20R50%20SL%20vs%20Zipp%20404,%20Roval%20Rapide,%20Dura-Ace%20and%20More:%20Carbon%20Road%20Wheels%20Compared) [Share on Facebook](https://www.facebook.com/sharer/sharer.php?u=https://irondeer.pt/feed/irondeer-r50-sl-vs-zipp-roval-enve-road-wheels) [Share on LinkedIn](https://www.linkedin.com/sharing/share-offsite/?url=https://irondeer.pt/feed/irondeer-r50-sl-vs-zipp-roval-enve-road-wheels)

The IronDeer R50 SL is our carbon road wheelset: 50 mm deep, 23 mm internal width, carbon spokes, 1160 g a pair on our scale and €1,200. The road wheel market is far bigger than gravel, so we compared it with the wheels riders actually search for and recognise: the Zipp 404 Firecrest, Roval Rapide CLX II and ENVE SES 4.5, Shimano's Dura-Ace C50 and Campagnolo's Bora Ultra WTO 45, and the carbon-spoke wheels that Hunt, Winspace and Elitewheels sell direct.

Every figure below is a manufacturer claim or a listed price, checked in September 2026, except the R50 SL's weight, which we measured ourselves. We have no wind-tunnel data of our own, so there are no invented watt savings here. Where a competitor does something better, we say so.

## The Short Answer

On weight, the R50 SL is the lightest wheelset in this comparison: 1160 g measured, against claims from 1263 g (Winspace) to 1520 g (Roval). It is one of four here with carbon spokes, and it takes the widest tyre range, 28 to 45C, on a hooked rim.

Where it gives ground: Zipp, Roval, ENVE and Hunt developed their rims in the wind tunnel, several with different front and rear profiles, while the R50 SL has a symmetric 50 mm rim and no published aero data. Its 120 kg system weight limit is lower than Roval's. And it has none of the race history of the big names.

[See the R50 SL](https://irondeer.pt/shop/irondeer-r50-sl) [Ask us if it fits your bike](https://irondeer.pt/contacts)

## R50 SL vs Zipp 404, Roval Rapide and ENVE SES 4.5

These are the names that come up most when riders look for a 50 mm carbon road wheel. All three cost well over €1,600 before VAT.

| Specification | IronDeer R50 SL | Zipp 404 Firecrest | Roval Rapide CLX II | ENVE SES 4.5 |
|---|---|---|---|---|
| Rim depth | 50 mm | 58 mm | 51 mm front / 60 mm rear | 48 mm front / 56 mm rear |
| Internal width | 23 mm | 23 mm | 21 mm | 25 mm |
| External width | 30.2 mm | 28 mm | 35 mm front / 30.7 mm rear | Not listed |
| Bead | Hooked | Hookless | Hooked | Hookless |
| Tyre range | 28 to 45C | 28 to 35 mm | 24 to 38 mm | Optimised for 27 mm |
| Weight, pair | 1160 g measured, excl. tape and valves (1135 ±30 g claimed, unpainted) | 1470 g claimed | 1520 g claimed, incl. tape and valves | Under 1500 g claimed, incl. tape and valves |
| Spokes | 3.2 mm carbon, 21/24 | 24 steel, J-bend | DT Aerolite steel, 18/24 | Steel |
| Hub engagement | 69T ratchet, about 5.2° | 66 points | 36T ratchet, 10° | 40T ratchet (60, 80, 100T optional) |
| Max system weight | 120 kg | 115 kg | 125 kg | Not listed |
| Price | €1,200 | US$1,900 (≈ €1,671, excl. EU VAT) | US$2,800 (≈ €2,463, excl. EU VAT) | US$2,850 (≈ €2,507, excl. EU VAT) |

Manufacturer claims and prices checked September 2026; R50 SL weight measured on our workshop scale. Weights are not measured the same way: Roval and ENVE include tape and valves, our measurement excludes them. US prices are converted at the 26 September 2026 rate (1 USD ≈ 0.8795 EUR) and exclude sales tax and EU VAT.

On claimed figures the R50 SL is about 310 g lighter than the Zipp and roughly 360 g lighter than the Roval, even though Roval's figure includes tape and valves. It is also the only one of the four with a hooked rim rated for tyres up to 45 mm. What the other three have is serious aerodynamic development: the Zipp is 8 mm deeper, and Roval and ENVE use different front and rear rims to balance speed with crosswind stability.

## Against Shimano Dura-Ace and Campagnolo Bora

Many riders simply stay with the wheels from their groupset brand. These are the flagship 45 to 50 mm wheels from Shimano and Campagnolo.

| Specification | IronDeer R50 SL | Shimano Dura-Ace C50 (WH-R9270) | Campagnolo Bora Ultra WTO 45 |
|---|---|---|---|
| Rim depth | 50 mm | 50 mm | 45 mm |
| Internal width | 23 mm | 21 mm | 23 mm |
| External width | 30.2 mm | 28 mm | 28.4 mm |
| Bead | Hooked | Hooked | Hooked (2-Way Fit) |
| Tyre range | 28 to 45C | 25 to 32 mm | 28 to 35 mm |
| Weight, pair | 1160 g measured | 1461 g claimed | 1325 g claimed |
| Spokes | 3.2 mm carbon | 24 steel, bladed straight-pull | 21 steel, aero elliptical straight-pull |
| Freehub | Shimano HG or SRAM XDR | Shimano 12-speed only | Campagnolo, Shimano or SRAM XDR versions |
| Warranty | 3 years | 3 years | Manufacturer terms |
| Price | €1,200 | US$2,100 (≈ €1,847, excl. EU VAT) | €3,695 |

Manufacturer figures checked September 2026; R50 SL weight measured on our workshop scale. The Shimano price is a US retailer price converted at the 26 September 2026 rate and excludes EU VAT; the Campagnolo price is a French retailer price including VAT.

The Dura-Ace C50 is the natural choice on a Shimano bike, but it only takes Shimano 12-speed cassettes. The Bora Ultra WTO 45 is the Italian classic, made in Campagnolo's own European factories with ceramic bearings, and at 1325 g claimed it is among the closest to our weight; it also costs three times as much. Both have narrower tyre ranges and steel spokes.

## Against Hunt, Winspace and Elitewheels

Three brands that sell carbon-spoke road wheels direct, and the closest to the R50 SL in concept.

| Specification | IronDeer R50 SL | Hunt SUB50 Limitless UD Carbon Spoke | Winspace Lún Hyper 5 D50 | Elitewheels Drive 50D II |
|---|---|---|---|---|
| Rim depth | 50 mm | 49.5 mm | 50 mm | 50 mm |
| Internal width | 23 mm | 23 mm | 23 mm | 23 mm |
| External width | 30.2 mm | 34.2 mm front / 30 mm rear | Not listed | 31 mm |
| Bead | Hooked | Hookless | Not listed | Hooked |
| Tyre range | 28 to 45C | 28 to 47 mm | Not listed | 28 to 35 mm |
| Weight, pair | 1160 g measured | 1380 g claimed | 1263 g claimed (±5%) | 1300 g claimed |
| Spokes | 3.2 mm carbon | UD carbon, 18/20 | Carbon | Carbon, 21/24 |
| Hub engagement | 69T ratchet, about 5.2° | 40T ratchet, 9° | 36T ratchet | 7.2° |
| Warranty | 3 years; crash rim €160 plus labour | 3 years; free lifetime crash replacement | 2 years | 3 years; crash replacement |
| Price | €1,200 | €2,279 | US$1,499 (≈ €1,318, excl. EU VAT) | About €1,260 to €1,350 |

Manufacturer figures checked September 2026; R50 SL weight measured on our workshop scale. Hunt's price is its EU store price including taxes. The Winspace price is converted from US dollars at the 26 September 2026 rate and excludes EU VAT. The Elitewheels price is the range at a European retailer including VAT, and its tyre range is that retailer's recommendation.

Hunt's SUB50 was developed in the wind tunnel with a wider front rim and comes with crash replacement, but it costs over €1,000 more and is about 220 g heavier on claims. The Winspace Hyper 5 is the lightest rival here at 1263 g claimed, and once EU VAT is added it sits close to our price; its warranty is two years. The Elitewheels Drive 50D II, from the brand whose gravel wheels we also sell and service, is the most similar wheel of all: 50 mm deep, 23 mm inside, carbon spokes, a hooked rim and a similar price. It is 140 g heavier on claims and rated for narrower tyres.

## Weight: 1160 g on Our Scale

We weighed a production pair on our workshop scale: 1160 g without rim tape and valves. That is 25 g over the claimed 1135 g and inside the stated ±30 g; the claim is for unpainted rims, and paint adds a little.

Most of the saving comes from two places. Each rim is claimed at 360 ±15 g, laid up from Toray T700, T800 and T1000 carbon. And the spokes are carbon: Hunt, Winspace and Elitewheels do the same here, while Zipp, Roval, ENVE, Shimano and Campagnolo use steel. Low weight at the rim is what you feel when you accelerate out of a corner or attack a short climb.

     Front wheel of a production R50 SL pair on our workshop scale in Nazaré.      Rear wheel on the same scale. Together: 1160 g without rim tape and valves.   ## Rim and Tyres: 23 mm Inside, Hooked, 28 to 45C

A 23 mm internal width is today's road standard, the same as Zipp, Campagnolo, Hunt, Winspace and Elitewheels. ENVE goes wider at 25 mm; Roval and Shimano stay at 21 mm.

The hooked rim means you are not limited to an approved tyre list or to the low maximum pressures of hookless rims: the Zipp 404, for example, is limited to 73 psi and 28 to 35 mm tyres. On the R50 SL you use the pressure range printed on your tyre. The full conditions of use are in our [owner's manual](https://irondeer.pt/manufacturing/wheel-owners-manual).

The 28 to 45C range is the widest here. The same wheels can run a 28 mm race tyre for fast rides or a wider endurance tyre for rough tarmac. The R50 SL is a road wheel for paved roads only. If you ride gravel or dirt roads, choose the G50 SL.

## Warranty and Crash Replacement

The R50 SL has a three-year IronDeer warranty on manufacturing and material defects. Damage from riding is not a defect, so on top of that the original owner can buy a replacement R50 SL rim after a crash for €160 instead of €200 within three years, with rebuild labour at our service centre prices. Four spare carbon spokes come in the box, and we fit them free of charge in the first year. None of this replaces your legal guarantee as a consumer in Portugal and the EU.

[Read the full IronDeer wheel warranty](https://irondeer.pt/manufacturing/wheel-warranty) [See the R50 SL replacement rim](https://irondeer.pt/shop/irondeer-r50-sl-replacement-rim)

## Where the Competition Is Stronger

**Aerodynamics.** Zipp, Roval, ENVE and Hunt developed their wheels in the wind tunnel, and Roval, ENVE and Hunt use different front and rear rims. The R50 SL has a symmetric rim and we have no wind-tunnel figures for it.

**Crash cover.** Zipp's lifetime warranty covers riding damage for the original owner, and Hunt offers free lifetime crash replacement. With us a new rim costs €160 plus labour.

**System weight.** The R50 SL is rated for 120 kg including bike and luggage. Roval allows 125 kg.

**Track record.** Zipp, Roval, ENVE, Shimano and Campagnolo wheels have won Grand Tours and Classics. The R50 SL is new.

## Who the R50 SL Is For

- Road riders who want a light 50 mm carbon wheel with carbon spokes for well under the price of the big names
- Riders who climb as much as they ride on the flat and value low rotating weight
- Anyone who wants one road wheelset for 28 mm race tyres and wider endurance tyres on rough tarmac, on a hooked rim

It is not the wheel for you if you ride gravel or dirt roads (choose the G50 SL), race time trials where every watt of aero counts, need a system weight limit above 120 kg, or put free crash replacement and a proven race history ahead of weight and price.

## Frequently Asked Questions

### Can I run the R50 SL tubeless?

Yes. The hooked rim works with tubeless tyres and with inner tubes.

### Which freehubs and axles are available?

Shimano HG or SRAM XDR freehub, 12x100 mm front and 12x142 mm rear thru-axles, disc brake only.

### What does a new rim cost after a crash?

A replacement R50 SL rim is €200. For the original owner within three years of purchase it is €160, plus rebuild labour, spokes and nipples at our service centre prices.

### R50 SL or G50 SL?

The R50 SL is the road wheel, for paved roads only: 23 mm inside, 28 to 45C tyres, 1160 g. The G50 SL is built for gravel: 30 mm inside, 40 to 60C tyres, 1279 g. Read our [G50 SL comparison](https://irondeer.pt/feed/irondeer-g50-sl-vs-zipp-roval-dt-swiss-gravel-wheels) for the gravel side.

## Ride the R50 SL in Nazaré

Numbers narrow the choice. Riding decides it. Tell us your bike, tyre size and the roads you ride, and we will tell you honestly whether the R50 SL is the right wheel.

[See the R50 SL in our shop](https://irondeer.pt/shop/irondeer-r50-sl) [Ask us about the R50 SL](https://irondeer.pt/contacts) [Browse all carbon wheels](https://irondeer.pt/shop)

[The Short Answer](#the-short-answer)

[R50 SL vs Zipp 404, Roval Rapide and ENVE SES 4.5](#r50-sl-vs-zipp-404-roval-rapide-and-enve-ses-45)

[Against Shimano Dura-Ace and Campagnolo Bora](#against-shimano-dura-ace-and-campagnolo-bora)

[Against Hunt, Winspace and Elitewheels](#against-hunt-winspace-and-elitewheels)

[Weight: 1160 g on Our Scale](#weight-1160-g-on-our-scale)

[Rim and Tyres: 23 mm Inside, Hooked, 28 to 45C](#rim-and-tyres-23-mm-inside-hooked-28-to-45c)

[Warranty and Crash Replacement](#warranty-and-crash-replacement)

[Where the Competition Is Stronger](#where-the-competition-is-stronger)

[Who the R50 SL Is For](#who-the-r50-sl-is-for)

    [Can I run the R50 SL tubeless?](#can-i-run-the-r50-sl-tubeless)

[Which freehubs and axles are available?](#which-freehubs-and-axles-are-available)

[What does a new rim cost after a crash?](#what-does-a-new-rim-cost-after-a-crash)

[R50 SL or G50 SL?](#r50-sl-or-g50-sl)

[Ride the R50 SL in Nazaré](#ride-the-r50-sl-in-nazare)

## You might also like

[3 weeks ago ###  IronDeer G50 SL vs Zipp, Shimano, Hunt and More: Carbon Gravel Wheels Compared

1279 g on our scale, 50 mm deep, 30 mm internal, carbon spokes, €1,199. The IronDeer G50 SL against nine carbon gravel wheelsets: Zipp, Roval, DT Swiss, Shimano, Campagnolo, Mavic, Hunt, Winspace and Elitewheels.](https://irondeer.pt/feed/irondeer-g50-sl-vs-zipp-roval-dt-swiss-gravel-wheels) [3 weeks ago ###  Elitewheels Drive G42 vs G50 CS: Real-World Gravel Wheel Comparison

Same claimed weight, same tire range, €200 apart. We rode the Drive G42 and G50 CS back to back on mixed terrain to find out what 42 vs 50 mm, 28 vs 30 mm and steel vs carbon spokes actually change on the bike.](https://irondeer.pt/feed/elitewheels-g42-vs-g50-cs) [16 Sep 2026 ###  Nazaré Big Wave Challenge 2026/27: dates, alerts and how to be there on the day

The WSL's tow-in contest at Praia do Norte has no fixed date. Here is what is known about the 2026/27 window, how the yellow and green alerts work, when the event has actually run in past winters, and how to give yourself a real chance of standing on the cliff when it happens.](https://irondeer.pt/feed/nazare-big-wave-challenge-2026-27-dates-alerts-how-to-watch) [16 Sep 2026 ###  Events in and around Nazaré, October 2026 to spring 2027: surf contests, the half marathon and what to watch for

Two world-tour surf contests within an hour of Nazaré in October, the 50th Nazaré half marathon in November, Carnaval in February, and two wait-for-the-day surf events that could be called on any winter morning. Every date checked, with what is confirmed and what still is not.](https://irondeer.pt/feed/events-nazare-silver-coast-october-2026-to-spring-2027)

Source: https://irondeer.pt/feed/irondeer-r50-sl-vs-zipp-roval-enve-road-wheels