Please note due the manufacturing processes and changes with BETD / Middleburn the colour may not be as pictured

Middleburn RS7 Duo was designed with the performance XC racer in mind, we were the first company to use a two ring set up for mountain bikes in 1995.

The inner ring/spider attaches to cranks using our exclusive Sweet Torque™ interface and acts as the 3-arm spider for the outer ring, saving weight.

All Duo outer chainrings utilise our slickshift technology, meaning that it is possible to run a 29T – 44T setup, maintaining a similar gearing range to a standard 3-ring chainset. Quite simply, it is perfect for all but the most severe terrain and offers a substantial weight saving.

MATERIAL: 7075 T6 alloy
RATIO: 27, 29, 32
CHAINLINE: 47.5mm using a 113mm bottom bracket
FINISH: Hardcoat (grey)

Solid rings are machined to a 4mm plate thickness. The result is an ultra high strength chainset assembly capable of withstanding large impact

Middleburn RS7 Uno has been tried and tested for many years by thousands of single speed riders.

More recently the Uno rings have been used on downhill and enduro bikes as a light reliable system as it replaces the spider, ring and bolts with just the Uno.

Uno rings are also used on tandems as the crossover rings.

Spider/Ring have been CNC machined from a billet 7075T6 one of the strongest alloys available today for unsurpassed durability and maximum strength. The Uno is super light as the spider and ring are all in one.

MATERIAL: 7075 T6 alloy
 

COMPATIBILITY: 1/ 8/ 9/ 10 speed

FINISH: Hardcoat

Now with thick thin ring technology

Please note due the manufacturing processes and changes with BETD / Middleburn the colour may not be as pictured

There is no compromise when it comes to gearing, one tooth up or down is the difference between victory and loss or clearing or casing the gap. So we make sure our chainrings come in a full range of useable sizes, so you can gear up to suit your needs.

DMR - Saturn Chain Ring 5 BOLT 42T Silver

SRAM Road 36 teeth 3 mm chainrings are stamped from 7075-T6 aluminium with black hard anodized finish. PowerGlide ramps/pins for optimized shifting performance. Number of bolts: 5. 110 mm bolt circle diameter.

• Low weight and excellent strength
• Made of 7075-T6 aluminium
• PowerGlide ramps/pins for optimized shifting performance
• Black hard anodized finish
• 110 mm bolt circle diameter

3D machined 7075 alloy Chainring disc. Ideal to fit to your DMR Cult cranks 25t, 27t and 29t Purple, Blue, Grey, Red and Green. Our new DMRCOLOUR components are CNC machined, forged or a combination of both for the best possible combination of strength, weight, price and surface finish. The surface finish is the critical element, allowing the anodizing to really shine out. 

DMRCOLOUR components are designed to match our Alloy Wingbars, Nutz, Swarm stems, Tilt seat posts, Grab seat clamps and Hubs. Spin chainrings have a 15/16th internal bore for the crank axle and are supplied with a spacer to fit a 19mm crank axle. Designed to run with single speed chains only. 25, 27 and 29 tooth Spinrings are designed to fit ‘Standard’ drive cranks.

Shimano FC-7900 Dura-Ace chainring