l008com
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Any old time Mountain Bikers here? In the 90s and early 2000s? Have you heard of a Rollamajig? Ok I'll get back to this in a sec.
Like probably most karts, my throttle cable comes up from the gas pedal, along the rails beside the seat. But then it has this big old loop that goes around so it can feed into the engine from the side. This causes two problems. It tends to kink, which isn't good. And it also tends to catch branches because it hangs out so far. It also catches the back tire sometimes too.
So the rollamajig. Back in the day, mountain bike rear derailers would take the shift cable input from the back. Meaning the cable would come from the handlebars, down the bike, then have to do a big 180° loop to feed into the derailer. This was an absurd setup and mountain bikes don't do it this way any more. But when they still did, a company came out with a device called the rollamajig. It was a pulley that you would essentially put in place of some section of cable housing. It eliminates the tight bend in the housing, and only bends over a actual pulley.
Rollamajig:
Do these exist in powersports? Seems like a great solution for mechanical brake cables, throttle cables, gear shift cables. Any situation where a cable needs to turn 90° or more. Also when you put these on a bike, it actually noticably reduced the force needed to shift gears. It wasn't just about theoretical friction reduction.
Like probably most karts, my throttle cable comes up from the gas pedal, along the rails beside the seat. But then it has this big old loop that goes around so it can feed into the engine from the side. This causes two problems. It tends to kink, which isn't good. And it also tends to catch branches because it hangs out so far. It also catches the back tire sometimes too.
So the rollamajig. Back in the day, mountain bike rear derailers would take the shift cable input from the back. Meaning the cable would come from the handlebars, down the bike, then have to do a big 180° loop to feed into the derailer. This was an absurd setup and mountain bikes don't do it this way any more. But when they still did, a company came out with a device called the rollamajig. It was a pulley that you would essentially put in place of some section of cable housing. It eliminates the tight bend in the housing, and only bends over a actual pulley.
Rollamajig:
Do these exist in powersports? Seems like a great solution for mechanical brake cables, throttle cables, gear shift cables. Any situation where a cable needs to turn 90° or more. Also when you put these on a bike, it actually noticably reduced the force needed to shift gears. It wasn't just about theoretical friction reduction.
