SHIMANO GRX RX820-F 前變速器採用肘節式連結結構，以及整合式的線張力調節器，提供更輕盈的前變速操控與更簡易的設定。其中設計採用 2.5 mm 外推 Chain Line，提供更寬廣的輪胎間隙，適合在混合地形騎乘，並涵蓋 17T 前齒盤範圍，提供更廣泛的檔位選項。
SHIMANO GRX RX820-F 前變速器採用肘節式連結結構，以及整合式的線張力調節器，提供更輕盈的前變速操控與更簡易的設定。其中設計採用 2.5 mm 外推 Chain Line，提供更寬廣的輪胎間隙，適合在混合地形騎乘，並涵蓋 17T 前齒盤範圍，提供更廣泛的檔位選項。
FEATURE
Lightweight SHIMANO ULTREAD XC rubber outsole delivers competition-grade grip that lasts.
FEATURE
Surround wrapping upper structure reduces overlap and provides a glove-like fit.
FEATURE
Rider-tunable spikes allow riders to select and swap spikes to match riding styles and conditions.
FEATURE
Rigid, lightweight carbon fiber reinforced midsole.
FEATURE
Supple high-density synthetic leather with perforation and lightweight mesh/TPU combination bring superior fit and comfort.
FEATURE
Dual independent BOA® L6 dials allow quick, micro tension adjustments.
FEATURE
Adjustable power zone lace guide securely holds forefoot.
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