absoluteBLACK Premium Shimano 110/4 bcd compatible oval chainrings are designed for new type of Shimano cranks Dura-Ace 9100 & Ultegra 8000 only. These are finest oval chainrings on the market in terms of shifting, smoothness of pedaling and manufacturing quality. (They can be also retrofitted to 9000 and 6800 cranks). 10/11/12spd compatible.
Compatibility: Shimano Dura-Ace 9100, R9150 Di2 and Ultegra 8000, R8050 Di2. They can also retrofit 9000 and 6800 cranks but use bolt covers for best appearance. 10 / 11 / 12spd compatible.
Materials: CNC machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing
Mounting: 110 BCD x 4
Ovality: Optimized to each size separately. 34T- 6.5% ; 36T, 38T, 39T- 11.4%, 50/52/53T - 10-11.2% ; Timing of 108 -110.5° after TDC (top dead center) - Ideal for road climbing. Patent Pending.
Advantages of Absolute Black Road Oval chainrings:
IMPORTANT: Ramps on big rings are specially configured for combinations: 50/34, 52/36, 52/38, 53/39T. If you wish to use other configuration it will also work, but shifting will be slower and may require more "adjustments" of front dérailleur to be acceptable. Also remember that front dérailleur can only accept max 16T difference between 2 chainrings - this is how Shimano and Sram designed them.
PLEASE NOTE !
Trek's policy states that we are unable to ship out Trek Bikes by courier, all Trek bikes are clearly marked Shop Collection!
All out products are shipped by DPD providing unprecedented reliability and speed. Please provide Mobile number for tracking!
Shipping on all domestic orders over £50.00 (including bikes* and home trainers) for delivery within the UK is completely FREE!
To qualify for free shipping:
Your delivery address must be within the United Kingdom
Your order, after any discounts, must be £50.00 or over
For all other orders including those under £50.00 there is a postage charge of;
Order Value After Discounts & Codes:
all items are shipped by courier not royal mail (except for BFPO's)
European & International delivery charges are dependent on basket value & weight this will be shown in the basket.
Delivery costs will be clearly stated on the checkout page, though you will need to register (to provide your delivery address) in order to see the delivery costs.
If you have any questions about delivery charges, times or none delivery please do not hesitate to get in touch by email:firstname.lastname@example.org or by telephone on +44 (0)8448 112299. Handling is normally 48 hours, but at busy periods this may be extended but we will endeavour to process your order within 5 working days, please contact us for more details
· Please Note : Trek Bikes cannot be shipped and are store collection or Van Delivery (ring for quote)