WHY ARE SOME COMPANIES RECOMMENDING TWO CALIPERS PER WHEEL?
Clamping force is a function of line pressure times piston surface area on one side of the rotor. All calipers have a maximum pressure rating and every company but ours recognizes 1200 psi (pounds per square inch), as being their rating. However, TBM Brakes calipers are rated at 1500 psi.
When you combine this with the loss of clamping force that most calipers see because of deflection, (clam shelling open), they can’t develop sufficient clamping force to get the job done.
If they must recommend two calipers per wheel, they are adding to the unsprung weight, covering up the ability of the rotor to effectively dissipate heat and still creating excessive drag not seen with ours.
You should also note that if they are selling you twice as many calipers that don’t do the job, then why not buy one that will? It won’t cost you any more.
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