Miranda’s been in business for 73 years, with much of that spent making motorcycle parts. In 1998, they brought in the equipment to machine and forge aluminum, and now much of their business is in OEM cranksets, all manufactured in their Portuguese factory. This summer, they’re adding new machinery to boost their already impressive capabilities.
Now, they are branching out into aftermarket products, the latest of which is their Infinium crankset announced this past December. The arms are cold forged using their own technique, and are accessorized with titanium bolts, spindle and chainring…
The chainring has their own tooth profile, and it’s not narrow wide. They call it Chainflow, and it’s designed to help the chain glide into the teeth since it makes contact directly against the rollers and engages them earlier for better retention. The design also means they can offer it in odd tooth counts, too.
And the titanium material should last a long time thanks to a carbon nano-particle surface-treatment material that’s used as a thick coating on top, also reducing friction. They say it’s a very durable coating because it doesn’t get chipped off, rather is more elastic, flexing ever so slightly under pressure from the chain. All of this is on a microscopic level, of course.
They’ll offer it with Shimano and GXP spindles, but no BB30. That would require a new crank arm design to accommodate the wider spindle, so they simply created a specific bottom bracket to make the 24mm spindle work in a PF30 frame.
The 28 to 38 tooth chainrings use an 88BCD, which is specific to their cranksets; and 39 and up is on a standard 104BCD. So, the larger chainrings could be used on other cranksets as well. Those larger sizes also mean they could be used for cyclocross on 4-bolt cranks.
A complete crankset came in at just 591g with a chainring installed. That’s not quite Race Face NextSL weight levels, but for those who prefer metal to carbon, it’s very competitive. Pricing should be around €400 for the crankset with ti chainring and bolts.