Razha Tiagra Rim

On the road, small changes in drag and tire resistance add up, and this score captures that effect. The strongest influences are narrow road tires that keep resistance low, an aero-leaning setup that reduces drag at higher speeds, and a more budget-friendly drivetrain that focuses on value. Add it all up and you get a clear tilt toward speed or toward utility.

Climbing rating: 3.3/10. Within Road bikes, it ranks below average. It has a middle-of-the-road low gear for climbing. In numbers, the low gear is roughly 27.0 gear inches. In its peer group, it lands around the easier ~58% for low-gear climbing. Think of “gear inches” like a difficulty score for your easiest gear: lower = more spin-friendly on climbs. A good middle-ground if you want mixed routes that include some hills. Specs can vary by size and build, and some manufacturer details aren’t always published, so treat this as a strong guide rather than a guarantee.

For an endurance build, with ~25mm tyres, coming in at 6.7/10 on aero, it balances some streamlining with versatility so you get some benefit when the wind matters. The short version is: it’s a balanced middle ground: some streamlining, but not an extreme aero setup. The endurance category also hints at the intent behind the design. Tyres around 25mm fit a faster road setup and usually keep drag in check. A more integrated front end usually reduces minor drag points around the cockpit. In practice, it’s a balanced setup: decent in the wind without demanding big compromises elsewhere.

Balanced fit - a versatile position for long rides and faster efforts. Because there's about 89 mm of drop to the bars (large), with roughly 559 mm of forward stretch to the bar (long). Plan for roughly 37 degrees of lean.

In Road, A modular front-end gives more freedom to change stem length or bar width; Hidden cables usually add a little friction when you swap bars or stems. So we classify it as Adjustable.

This scores 3.0/10 for comfort, so it feels more responsive than cushy out on the road. That’s why it’s labeled Race-Stiff. It’s running about 25 mm tires on 700c wheels, and you feel more of the road texture with narrow tires on chipseal and broken pavement. The posture is neutral (posture 6/10, torso ~37°), which balances comfort and responsiveness pretty well.

This setup is focused on speed and efficiency on paved roads. The tire size is around 25 mm, which is typical for fast road setups. It’s listed as Endurance, but the setup aligns better with Road Only.