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RIDEA Pneuma Taroko GR4C 曲柄組
RIDEA Pneuma Taroko GR4C 曲柄組
RIDEA Pneuma Taroko GR4C 曲柄組

RIDEA Pneuma Taroko GR4C 曲柄組

定價 $737.00 $0.00 單價

【台灣品牌RIDEA】Pneuma Taroko GR4C曲柄組!!

 

商品描述

Pneuma Taroko GR4C is the super-compact option in the Taroko cranks line. The 46-30t ratio makes keeping your cadence in hard climbs and gravel routes easier than ever.

 

P/N Pneuma Taroko GR4C
Crank material CNC AL7150
Crank arm length 24: 140; 145; 150; 155; 160; 165; 167.5; 170; 172.5; 175; 180 mm
29: 155; 160; 165; 167.5; 170; 172.5; 175 mm
Spider mount positions Three, in 10° steps
BCD 110/96 mm
4 arms
Weight 460 g (170 mm; TI64-24 mm spindle; w/o chainring)
Ridea chainrings LamiFlow GR4C series (1x or 2x)
Colors Black (more colors are available as a customization option)


 

Spindle diameter Spindle material Spindle length Bearing contact area Chain line Q factor
24 mm SCM440 or TI64 126 mm 92 mm 44.5 mm 148 mm
29 mm AL7075 126 mm 92 mm 44.5 mm 148 mm

 

Modular system

Pneuma cranksets are fully modular. The different parts (crank arms, spindles, power meter spiders, spiders and chainrings) can be mixed and matched to suit every rider specific needs. Your crankset can change with you at the same time that you change your riding style or your fitness.

The only limitations are that 29 mm spindles require specific Pneuma crank arms for 29 mm, and vice versa with 24 mm. Also, the BCD and number of bolts for both the spider and the chainrings must be the same. Other than that, you can mix and match Pneuma crankset parts to best suit your needs.

A new concept of hollow crank

All high-end cranks try to reduce weight by reducing the quantity of material used. Most cranks, despite the external appearance, are more or less hollow in the inside. Although in most cases, hollow cranks work flawlessly during the whole expected life of the crankset, sometimes moist and humidity can build up in the interior, leading to corrosion or rust and, eventually, crank failure.

The design of the Pneuma crank reduces the weight while retaining an optimal weight/stiffness ratio, as well as completely eliminates the possibility of corrosion or rust building up in hidden areas.

3 spider-chainring positions for your Powering

Pneuma spiders can be installed in three different angles, with ten degrees of separation between each position. When using oval chainrings like the Ridea Powering, this feature can be used to adjust the position of the biggest and lowest ratio of the chainring in relation to the crank arms, in order to better adapt to you riding preferences and musculature.

24 mm and 29 mm spindles

Ridea designed the first 29 mm diameter spindle back in 2012 with the ES BB29 series. Pneuma cranksets inherit this innovation and are available in 29 mm versions, which are compatible with other 29 mm solutions in the market like SRAM’s DUB™. Needless to say, Pneuma cranks are also available with 24 mm spindles, which again are compatible with other solutions like Shimano’s HOLLOWTECH II.

Available spindles for Pneuma cranks
 

The following table shows all the available spindles for Pneuma. Highlighted in gray are the spindle type(s) that is(are) standard for this specific crankset model (Pneuma Taroko GR4C). Other spindles can be installed to suit specific needs.

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RIDEA 積極投入開發自行車領域,推出了許多熱賣的改裝升級零件,舉如齒盤、曲柄組、導輪、加大擺臂、坐墊、輪組、還有許多小徑、小摺車款的特規改裝套件,豐富自行車改裝的需求,讓許多的車友能為自己搭配出屬於自己個人特色的自行車。

 

 

 

 


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