Newmen's Streem G.48 Offers Lighter Wheel Option
Cyclists weighing upgrades get a 48mm carbon option at £1,499, with a steel-spoke version at £1,250 due in 2027.
Updated on Nov. 6, 2026 in Cycling
Newmen has launched the Streem G.48, a 48mm-deep carbon rim wheelset offered in carbon-spoke and steel-spoke versions. The carbon-spoke model carries a UK recommended retail price of £1,499, and the steel-spoke model £1,250, with the carbon version due shortly and the steel version scheduled for spring 2027.
Why it matters
For cyclists weighing wheel upgrades, the G.48 offers a mid-depth option that shares the G.62's 27mm internal and 45mm external widths while cutting rim depth, which affects both weight and aerodynamics. The launch also signals Newmen's plan to extend the range across larger wheel sizes.
The figures come from Newmen's own product specifications, not independent laboratory testing. The claimed 0.5-watt aerodynamic saving of the Aero Valve System is a manufacturer estimate.
The players
Newmen
German bicycle component maker known for carbon wheelsets and related cycling hardware.
The details
The G.48 uses 21 VONOA carbon spokes on the carbon-spoke version and 24 Sapim CX-Ray steel spokes on the steel version. Both use hooked, tubeless-ready carbon rims and are supplied with the Aero Valve System and tubeless sealant. The carbon-spoke model uses Newmen's Fade R hub, with a 12 x 100mm front and 12 x 142mm rear hub specification and Centerlock disc mounts.
Timeline
Launched November 6, 2026, with announced plans for 28-inch, 30.5-inch and 32-inch sizes.
Carbon-spoke G.48 due shortly after launch.
Steel-spoke G.48 scheduled to follow in spring 2027.
Health Landscape
Cycling wheel development has increasingly centered on the trade-off between aerodynamic gain and weight, a balance that affects how riders train and race. Newmen's G.48 sits within that ongoing engineering trend rather than representing a shift in rider health research.
Riders considering a wheel upgrade should weigh the claimed 130g weight difference and aerodynamic figures against their own riding goals and terrain. Anyone with a physical limitation or injury should consult a clinician or qualified bike fitter before changing equipment that affects riding position or effort.
The takeaway
Wheel specifications are often manufacturer claims, so comparing independent reviews alongside spec sheets helps set realistic expectations. Riders planning a purchase should consider fit and their own training needs with a knowledgeable bike fitter.
What happens next
The carbon-spoke G.48 is due shortly, and the steel-spoke model is scheduled for spring 2027.
Further reading
For broader context on bike components and riding gear, explore the Cycling section.
