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Road bike helmets in the testGiro Eclipse Spherical and the Giro Cielo Mips

Matthias Borchers

 · 14.05.2025

Mips Spherical is available exclusively from Giro. It consists of two helmet shells that can be moved against each other and are very comfortable to wear
Photo: Matthias Borchers

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On the tarmac and in the crash test, it becomes clear which helmets offer the greatest safety reserves. Seven manufacturers, from Abus to Uvex, each sent an inexpensive and a top model at prices between 100 and 300 euros into the test race. One realisation up front: all the helmets are much better than the standard requires - but some offer a small safety advantage, regardless of price. Here: the Giro Eclipse Spherical and the Giro Cielo Mips.

Giro Eclipse Spherical

Mips Spherical is available exclusively from Giro. It consists of two helmet shells that can be moved against each other and are very comfortable to wear.Photo: Matthias BorchersMips Spherical is available exclusively from Giro. It consists of two helmet shells that can be moved against each other and are very comfortable to wear.

Good all-round fit; runs small in size M, from 58 centimetres head circumference the head ring presses on the forehead; the Mips Spherical system with the two helmet shells is exclusive to Giro; it protects well against concussions, the shock absorption is good average; the adjustment in width and height works well, a pigtail fits through comfortably, the width adjustment wheel is quite small.

Giro Eclipse Spherical: Info and rating

Giro Eclipse SphericalPhoto: Matthias BorchersGiro Eclipse Spherical
  • Price: 260 Euro >> available here at a reduced price
  • Country of production: China
  • Weight size M: 272 grams
  • Sizes: S 52 - 55.5; M 55.5 - 59; L 59 - 62.5; XL 62.5 - 65
  • Colours: 4 colour variants
  • Rotation system: Mips Spherical
  • Extras: none

Measured values

  • BrIC: 0.25
  • Acceleration (g): 125.2
  • Probability of concussion: 9%

TOUR rating

  • Protection Rotation (25 %): 1,7
  • Protection Shock absorption (25 %): 3,3
  • Adaptation system (20 %): 1,6
  • Cooling (15%): 1,0
  • Weight (15%): 1,7
  • Overall grade (100%): 2,0

Giro Cielo Mips

The Evolve Core from Mips in the Giro Cielo is thin and unpadded at the back, which can feel uncomfortable on bare and sweaty scalps.Photo: Matthias BorchersThe Evolve Core from Mips in the Giro Cielo is thin and unpadded at the back, which can feel uncomfortable on bare and sweaty scalps.

All-round fit, normal size; the padding in the Mips cage sits nice and tight, the height and width adjustment works well, but there is little room for a slim pigtail; the very well-made helmet is slightly heavier than average and is available in seven colour variants; the ventilation works very well in every head position.

Giro Cielo Mips: Info and evaluation

Giro Cielo MipsPhoto: Matthias BorchersGiro Cielo Mips
  • Price: 200 Euro >> available here at a reduced price
  • Country of production: China
  • Weight size M: 282 grams
  • Sizes: S 52 - 55.5; M 55.5 - 59; L 59 - 62.5
  • Colours: 7 colour variants
  • Rotation system: Mips Evolve Core
  • Extras: none

Measured values

  • BrIC: 0.32
  • Acceleration (g): 114.0
  • Probability of concussion: 18%

TOUR rating

  • Protection Rotation (25 %): 2,3
  • Protection Shock absorption (25 %): 3,0
  • Customisation system (20 %): 1,4
  • Cooling (15%): 1,0
  • Weight (15%): 2,0
  • Overall grade (100%): 2,1
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Matthias Borchers

Matthias Borchers is an expert for clothing and accessories in the test department of TOUR. As an amateur cyclist, he has completed the TOUR-Transalp and the TOUR-Trans Austria. His reportage trips from San Francisco to Sakai and 17 trips to the Tour de France with around 30,000 motorhome kilometres are also formative.

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