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Sometimes the simplest solution is the best one. In the case of the OG 1090 Cassette, simplicity also means elegance, efficiency, and performance. The main cogset of the OG 1090 cassette is machined out of a single forged form that is heat treated and then shaped in a complex series of CNC-guided operations. The sprockets have all been designed with SRAM's proprietary OpenGlideT design for smooth-as-silk up- and downshifts. Weight, stiffness, and strength-wise, the radical OG 1090 Cassette delivers titanium's desireable weight with solid steel's superior strength and stiffness.

. Lightweight: Innovative CNC'd chromoly steel construction.

. Durable: 35% harder than titanium!

.Stiff: 15% stronger than its competitor.

.OpenGlide technology allows for smoother transition between gears.

Weight 155g / 11-23, 166g / 11-26
Speeds 10
Recommended Chain PC 1090R, PC 1090, PC 1070
Lock Ring Material Aluminum Anodized
Sprocket Material Heat-Treated Steel
Available in 11, 12, 13, 14, 15, 16, 17, 19, 21, 23
11, 12, 13, 14, 15, 17, 19, 21, 23, 25
11, 12, 13, 14, 15, 17, 19, 21, 23, 26
11, 12, 13, 14, 15, 17, 19, 22, 25, 28

Delivery Information

Hargroves Cycles offer Free Delivery for all orders over £9 with in Mainland UK (orders below £9 will be charged £1.99)

Current disptach time of UK Bike orders is 7-10 days.
In Stock Clothing, Parts and Accessories are usually delivered within 2-4 working days, often sooner.

Bikes and Bulky items are sent via TNT Courier and smaller items are sent via Royal Mail 2nd Class Post.

Items over £50 are sent with Royal Mail 1st Class track able service which is emailed to the customer on the day of dispatch.
For full delivery details please see our Delivery Page

International Delivery

Hargroves Cycles delivery all across Europe. Goods are shipped from the UK and are subject to import duties where applicable

For further delivery, pricing and restriction information please view our International Shipping Page

Returns Information

We will happily exchange or refund any item purchased at Hargroves Cycles within 365 days, except gift vouchers and personalized products, except where faulty.

Returned goods must be unused and supplied with their original packaging, unless faulty.

For full details on our Returns procedure please visit out Returns Section.

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SRAM - Bike components are all we do - which is why we do them so mind-bendingly well. SRAM Corporation began with the goal of creating the absolute best shifting system and changed the cycling world forever with the introduction of Grip Shift. To support the innovation, we invested in Sachs Bicycle Company and built a state of the art manufacturing facility in Schweinfurt Germany.

We had the vision and desire to expand our presence in the industry so we found the best suspension company, RockShox, joined forces with them, creating huge excitement in the global cycling community. Not content to stop there, we knew expanding our line with the best brakes, bottom brackets and cranksets would fine-tune the ride even more. So we teamed up with Avid and Truvativ.

TEL. 02380 862 011
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To avoid disappointment please contact the store before visiting to confirm current stock or to arrange to transfer items to desired store. Bikes require additional checks and this may affect estimated dispatch times.

  • SRAM Red - OG1090 Cassette