# Bola ST 50T 50mm Carbon Road Wheelset, DT Swiss 350S Hubs, 25mm 28mm Tubular Rim Brake The Bola ST 50T 50mm carbon road wheelset is engineered for riders targeting aerodynamic performance, lightweight efficiency, and reliable braking on rim brake road bikes. Weighing just 1270g ±20g per set and built with DT Swiss 350S hubs, this tubular wheelset offers a competitive balance of stiffness, durability, and terrain versatility for road racers and cost-conscious cyclists looking for a proven wheel upgrade. ## Key Features & Specs - **Wheelset Weight:** 1270g ±20g (pair, without tires) - **Rim Material:** T700/T800 high modulus UD matte carbon - **Rim Depth:** 50mm (aero optimized for reduced drag) - **External Rim Width Options:** 25mm or 28mm (select for tire and terrain compatibility) - **Brake Surface:** Basalt carbon layer (rim brake, thermal resistance for long descents) - **Hub:** DT Swiss 350S, straight pull, sealed bearings - **Spokes:** Sapim CX-Ray, 20 front (radial), 24 rear (2-cross) - **Tire Compatibility:** Tubular (use with 25–30c tubular tires; not tubeless-ready) - **Certifications:** EN 14781 road wheel standard compliance - **Maximum Recommended Rider Weight:** 100kg - **Warranty:** 2 years (manufacturer defect coverage worldwide) ## How it Compares Feature Bola ST 50T Performance Model (Bola EXP 50T) Wheelset Weight 1270g ±20g 1230g Hub Spec DT Swiss 350S DT Swiss 240S Rim Depth 50mm 50mm External Rim Width 25mm/28mm 25mm/28mm Brake Surface Basalt carbon (rim) Basalt carbon (rim) Spokes Sapim CX-Ray Sapim CX-Ray Intended Use Road, stage racing, endurance Competitive, race-level Warranty 2 years 2 years Price Position Mid-range, value-oriented Premium, higher cost ## Recommended Use Cases - Upgrading mid-tier aluminum wheels to lighter, aero carbon for improved speed and acceleration - Road racing and criteriums where a 50mm profile balances aerodynamic benefit with stability in crosswinds - Long-distance stage races and endurance events requiring dependable rim brake performance - Hilly terrain where low wheelset weight aids in climbing and efficient power transfer - B2B partners seeking a cost-effective, EN-certified carbon wheelset for retail or OEM/ODM supply ## Frequently Asked Questions **Are 50mm deep carbon tubular wheels good for road racing?** Yes. 50mm deep carbon tubular wheels like the Bola ST 50T pair aerodynamic efficiency for flat sections with responsive handling for rolling terrain, making them a suitable upgrade for amateur and intermediate-level road racers. **How does a 1270g carbon wheelset with DT 350 hubs compare to other lightweight wheelsets?** The ST 50T’s 1270g weight is lighter than most mid-range carbon wheelsets with similar rim depth and outperforms many entry-level models using generic hubs. While flagship wheels with DT Swiss 240S or higher-end carbon spokes can be lighter, the ST 50T offers a strong stiffness-to-weight ratio at a more accessible price point. **What's better for hilly terrain, 25mm or 28mm wide tubular carbon rims?** For mixed or hilly terrain, 25mm rims with 25–28c tubular tires typically minimize system weight and improve climbing, while 28mm rims provide slightly improved comfort and tire stability, especially for rougher surfaces. Confirm wheel and brake clearance before choosing. **Can these rim brake carbon wheels handle long descents without overheating?** Yes, the basalt carbon braking surface on the ST 50T is engineered for increased thermal resistance. For best performance and rim longevity during long descents, use carbon-specific brake pads and allow for cooling intervals when necessary. **Is this wheelset a good upgrade for improving acceleration and speed on my road bike?** Upgrading to a 1270g carbon tubular wheelset reduces rotational mass, directly improving acceleration and responsiveness. Paired with Sapim CX-Ray spokes and DT Swiss 350S hubs, the ST 50T boosts riding speed and sprint capability compared with stock alloy wheelsets. ## Details - **Price:** 860.0 USD - **Type:** Road Bike Carbon Wheelsets - **Tags:** 25mm wide, 28mm wide, 50mm, 50mm carbon bike wheels, 50mm tubular carbon road wheels, 50mm tubular carbon wheels, 700c, 700c carbon road wheels, 700c carbon wheels, aero road wheels, aero wheelset upgrade, carbon racing wheels, carbon road wheelset, carbon wheelset, climbing wheelset, DT Swiss, DT Swiss 350S, DT Swiss 350S hubs, endurance bike wheels, lightweight carbon wheelset, lightweight road wheels, OEM carbon wheel supplier, rim brake road bike, rim brake wheelset, road, road racing wheels, Sapim CX-Ray, tubular, tubular rim brake wheels, tubular wheelset, wheels, wheelset ## Variants | Variant | Price | Available | |---------|-------|-----------| | 17/25 mm / Shimano HG / Black Bola | 860.00 USD | In stock | | 17/25 mm / Shimano HG / White Bola | 860.00 USD | In stock | | 17/25 mm / Shimano HG / Customized | 860.00 USD | In stock | | 17/25 mm / Sram XDR / Black Bola | 860.00 USD | In stock | | 17/25 mm / Sram XDR / White Bola | 860.00 USD | In stock | | 17/25 mm / Sram XDR / Customized | 860.00 USD | In stock | | 17/25 mm / Compy / Black Bola | 860.00 USD | In stock | | 17/25 mm / Compy / White Bola | 860.00 USD | In stock | | 17/25 mm / Compy / Customized | 860.00 USD | In stock | | 21/28 mm / Shimano HG / Black Bola | 860.00 USD | In stock | | 21/28 mm / Shimano HG / White Bola | 860.00 USD | In stock | | 21/28 mm / Shimano HG / Customized | 860.00 USD | In stock | | 21/28 mm / Sram XDR / Black Bola | 860.00 USD | In stock | | 21/28 mm / Sram XDR / White Bola | 860.00 USD | In stock | | 21/28 mm / Sram XDR / Customized | 860.00 USD | In stock | | 21/28 mm / Compy / Black Bola | 860.00 USD | In stock | | 21/28 mm / Compy / White Bola | 860.00 USD | In stock | | 21/28 mm / Compy / Customized | 860.00 USD | In stock | ## Images - Bola ST 50T 50mm Carbon Road Wheelset, DT Swiss 350S, CX-Ray, Tubular, Rim Brake, 25/28mm - Bola ST 50T 50mm Carbon Road Wheelset, DT Swiss 350S, CX-Ray, Tubular, Rim Brake, 25/28mm Carbon Fiber Sporting Goods - Bola ST 50T 50mm Carbon Road Wheelset, DT Swiss 350S, CX-Ray, Tubular, Rim Brake, 25/28mm ## Additional Information - **Product rating count:** 1 - **Related products settings:** ahead - **AI Summary:** The Bola ST 50T 50mm Carbon Road Wheelset is a tubular, rim brake carbon wheelset for road racers and endurance riders seeking a light 50mm aero upgrade with DT Swiss 350S hubs. It pairs a 1270g ±20g claimed pair weight with a basalt carbon brake surface for riders using compatible rim brake road bikes. - **Hub Model:** DT Swiss 350s - **Rim Depth (mm):** 50 - **Rim Width (mm, external):** 25 - **Wheelset Weight (grams):** 1270 - **Spoke:** Sapim CX-Ray - **Bearing:** DT Steel --- > Source: [Bola Carbon Wheelset ](https://bolacarbon.com/products/bola-st-50t-50mm-carbon-road-wheelset-dt-350s-hub-cx-ray-spoke-tubular-rim-brake-25-28mm-1270g) > Updated: 2026-08-12