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Shimano have extensively tested this new power meter system to ensure its accuracy and reliability in all weather conditions. The chainset is equipped with dual sided and internally hard-wired crank arm strain gauges, which provide a ±2% power measurement accuracy regardless of your pedalling position.
The power meter is powered with a simple rechargeable battery for easy maintenance. This battery can be updated wirelessly and is discretely mounted to the chainset's 4-arm spider. This means you can change the chainrings without having to worry about affecting the power measurement.
Although the chainset's spider arms are noticeably wider to increase the stiffness, Shimano has still managed to lower the overall weight by 7g over the previous versions of Dura-Ace. The chainset has been adapted to ensure it is compatible with disc brake road bikes that have 135mm rear hub spacing and shorter chainstays. Thanks to its wider chainring spacing this extra clearance has been introduced without any increase to the Q-factor.
A 2 year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).
Auckland: 09 489 5494
- Orders received before 3pm are normally dispatched the day they are ordered.
- The standard delivery time for products to be delivered New Zealand postal addresses (excluding bikes) is within 3 working days.
- All costs associated with delivery are calculated and added at the point of purchase in the shopping cart.
- Delivery costs are itemised in your account and can be viewed by logging into your account.
If your delivery requires further attention, please contact us on 0800 549 483
- We will happily refund or exchange any item purchased on kiwivelo.co.nz.
- All returns MUST have a completed returns form enclosed which can be found here. This form can be filled out on your device.
- We do not cover returns cost.
- Returned goods must be unused and supplied with their original packaging undamaged also.
- If you have paid with card, we will credit the card we have on file for you this may take up to 10 working days to appear as cleared funds.
- Replacement products normally take 5 days to deliver - provided you have followed our returns procedure correctly.
- The status of your credit or return can be viewed by logging into your account.
For more assistance related to returned items, contact us on 0800 549 483