The phrase "a foothold that allows" is correct and usable in written English.
It can be used when discussing gaining a position or advantage that enables further action or development.
Example: "The new policy provides a foothold that allows the company to expand its operations into new markets."
Alternatives: "a basis that enables" or "a foundation that permits".
By targeting nonconsumers, LSEV manufacturers have steered clear of direct competition with incumbent automakers — who have at their disposal far more resources, such as capital, factories and relationships with suppliers — and effectively established a foothold that allows them to steadily move upmarket.
(ii) "The noncatalytic domain acts as a foothold that allows Kar3 to bias translocation towards the minus end via a diffusive ADP state".
But if we can bring the buildup into our awareness, we gain a mental foothold that allows us to short-circuit what otherwise would become a destructive emotional hijack.
"I would find this new foothold that allowed me to do a certain move in a way that was a little bit more secure — stuff like that.
Leftist groups here say the real objective is to give the United States a foothold that would allow it to seize the Brazilian Amazon and thus command the southern flank of Venezuela's leftist president, Hugo Chávez.
According to this method, when the robot puts its foot on the ground, it applies some excess force and confirms whether the foothold is stable, and then chooses a foothold that does not collapse.
Further investigation showed that Cik1 provides a 'foothold' for the motor, binding it to the microtubule in such a way that allows it to move along the microtubule in the opposite direction to most kinesins.
By creating a lawless Iraq, Bush allowed al-Qaida a foothold that Saddam had always denied it.
The result is a smaller, more compact city that allows smaller companies to gain a foothold in the tech economy.
That freedom, combined with reasonable load times on MySpace (1-2 seconds v. 20 seconds for Friendster), allowed the nascent site to get a foothold that it is yet to relinquish.
However, the operation gained a foothold that the Allies gradually expanded over the coming months.
