Effetto Mariposa Carogna tape - the end of tubular glue?

Intriguing dual-sided adhesive tape promises to finally make it easy to mount tubulars

Tubular tyres have persisted in both road and cyclocross circles thanks to their enviable ride quality, generally fantastic cornering ability, and the fact that they can safely be ridden at extremely low pressures or even completely flat. Nevertheless, many riders simply don’t want to deal with the hassles of installation and removal: the multiple layers of glue, the noxious fumes, the sticky mess, the raw thumbs… Effetto Mariposa’s new Carogna tubular tape, however, promises to make living with tubulars nearly as easy as clinchers.

Carogna is a special dual-sided adhesive tape that at least in concept, is somewhat similar to the tubular tape that Tufo has offered for years. You simply apply one side of the tape to a clean rim, peel off a small tab of backing, mount the tyre and pump it up slightly.

Once you’re satisfied with the position of the tyre on the rim, you simply remove the backing stripe by pulling on that tab, pump up the tyre to fully compress the glue, and then wait a few hours for the glue to cure.

The two-layer, dual-sided tape uses a thin acrylic adhesive on the rim side but a 1mm-thick strip of much softer glue on the tire side. according to effetto mariposa, this helps fill any gaps in between the tire casing and rim for a more secure bond: the two-layer, dual-sided tape uses a thin acrylic adhesive on the rim side but a 1mm-thick strip of much softer glue on the tire side. according to effetto mariposa, this helps fill any gaps in between the tire casing and rim for a more secure bond
The two-layer, dual-sided tape uses a thin acrylic adhesive on the rim side but a 1mm-thick strip of much softer glue on the tire side. according to effetto mariposa, this helps fill any gaps in between the tire casing and rim for a more secure bond: the two-layer, dual-sided tape uses a thin acrylic adhesive on the rim side but a 1mm-thick strip of much softer glue on the tire side. according to effetto mariposa, this helps fill any gaps in between the tire casing and rim for a more secure bond

Carogna tape uses a thin adhesive layer on the rim side but a thicker layer on the tyre side to help fill in any gaps for a more secure bond

However, where Tufo tape doesn’t adhere the edges of the tyre to the rim very well and is very thin, Carogna secures the tyre across the entire width of the rim. Carogna is also thicker and notably softer on the tubular side so as to fill in any space in between the casing and rim when the mating interface isn’t absolutely perfect (which it rarely is). According to Effetto Mariposa founder Alberto De Gioannini, this makes for a more secure bond.

“Tufo tape is thicker in the center and thinner on the sides, and it’s quite stiff,” he told BikeRadar at the Taipei Cycle Show. “It only relies on the adhesive to keep the tubular there. My concept is different. On the rim side is a semi-structural glue that bonds to the rim surface. It’s very hard to remove – but you can remove it, and the glue will stay with the tape.”

Effetto mariposa promises that carogna tubular tape will leave behind a clean rim surface after old tires are removed, meaning even used rims can still look like this without using harsh solvents:
Effetto mariposa promises that carogna tubular tape will leave behind a clean rim surface after old tires are removed, meaning even used rims can still look like this without using harsh solvents:

Effetto Mariposa claims that Carogna tape removes intact, leaving a clean rim surface that will readily accept another tyre

“On the tubular side, there is a 1mm thick mass of glue that has been developed for underwater applications. When you inflate the tubular, the glue squeezes so it provides an optimal adhesive surface covering. It gets to 90 percent of its maximum adhesion after eight hours.”

Moreover, De Gioannini says that Carogna provides a more even bond layer around the entire circumference of the rim than traditionally hand-applied adhesive since the tape is the same thickness throughout. And best of all, Carogna will supposedly peel off the rim almost perfectly, leaving a clean surface behind that’s already nearly ready to have another tyre glued on.

“On the tubular side, the glue is permanent so you won’t be able to remove the glue from the tyre. Part of the glue will stay on it but you can remove it and you will end up with a thin layer of glue. So it’s similar to what you get with mastic but it’s even.”

De Gioannini also says that Carogna will retain its adhesive strength up to 180°C for brief periods and extended stretches up to 150°C. On the other hand, De Gioannini claims that even a good traditional glue will start to soften at around 120°C.

Accompanying the Carogna tape is the rather misleadingly named Carogna Remover gel solvent, which isn’t actually used to remove tape residue but instead old traditional tubular glue to help prep the surface for taping.

The somewhat misnamed carogna remover isn't meant to remove tape residue. instead, it's designed to help remove old traditional tubular glue, leaving the clean surface that the new effetto mariposa carogna tape requires:
The somewhat misnamed carogna remover isn't meant to remove tape residue. instead, it's designed to help remove old traditional tubular glue, leaving the clean surface that the new effetto mariposa carogna tape requires:

Carogna Remover isn't designed to remove tape residue but rather old traditional glue so as to create a clean surface

“You have to spread it on the rim, and if you have a thick layer of mastic, it needs some time – two hours, eight hours, sometimes more. After a while, you will feel that the mastic is soft and you can use an old rag or plastic tyre lever. The result is that the rim will be like new – even with old mastic.”

Retail price for a 2m roll (enough to mount one tyre) is US$20 for the narrower 16.5mm size and US$25 for the 25mm width. A 16m shop roll costs US$100. International prices are to be confirmed. Regardless, Carogna isn’t cheap but for some, the added convenience might well be worth it.

Will Carogna live up to the hype? We’re certainly eager to find out and are bringing samples back from Taipei to begin testing immediately.

For more information, visit www.effettomariposa.eu.

James Huang

Former Technical Editor, US
James was BikeRadar's US tech editor from 2007-2015.
  • Discipline: Mountain, road, cyclocross
  • Preferred Terrain: Up in the Colorado high-country where the singletrack is still single, the dirt is still brown, and the aspens are in full bloom. Also, those perfect stretches of pavement where the road snakes across the mountainside like an artist's paintbrush.
  • Beer of Choice: Mexican Coke
  • Location: Boulder, CO, USA

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