- Speed: 2x12

The front derailleur cage rotates to maintain a consistent angular relationship with the chain

Compatible app

It delivers a realistic

The grease for harsh environments

polar stride sensor bluetooth smart runn - Speed: 2x12Delivery in 1 2 business days (Republic of Ireland) Delivery in 3 5 business days (Europe) Finance available at checkout with humm by flexifi. Description The Stride sensor Bluetooth Smart is ideal for runners who want to improve their technique and performance. You get to see information about your speed and distance on your training device, whether you're running on a treadmill or the muddiest trail. Measures each stride you take to show your