Home > Tech Tips > Pedal Ratios / Mechanical Leverage Solution by: totalwebsystems  
Search
Brands
Shopping Cart
Your cart is empty!
0 items
£0.00
Go to Checkout
Your Account
Your Email Address
Your Password
Did You Know?
There are currently 24 guests online.

91,208,369 visitors online since Thursday 30 September, 2004

 
Pedal Ratios / Mechanical Leverage by Scott Gillespie

Pedal ratio, or mechanical leverage is the ratio calculated from the length from the pivot point of the pedal to the centre of the foot pedal (A), divided by the length from the pivot point to the master cylinder push rod (B). Refer to the figures below.

Mechanical leverage is simply a means of increasing the brake force without increasing your leg effort. As 'A' gets longer and 'B' gets shorter, the mechanical leverage increases brake force without pushing harder on the pedal. The disadvantage is that the pedal stroke also increases, requiring you to push the pedal further.

With a 1" master cylinder stroke, a 100 pound push on the pedal, and the pedal having a 4:1 ratio, the force is 4 x 100 = 400 pounds, and the stroke is 4 x 1 = 4". With a 100 pound push on the pedal, and the pedal having a 6:1 ratio, the force is 6 x 100 = 600 pounds, and the stroke is 6 x 1 = 6".

Pedal Raios / Mechanical Leverage

This article was published on Friday 25 March, 2011.
Best Sellers
01.Hose Fitting Copper Washer - 3/8 & M10
02.Hose Fitting Olive
03.#3 STAINLESS BRAIDED BRAKE HOSE (3/8)
04.Wheels Nuts - 12mm 1.5 19mm (3/4") HEX 60
05.Forged Powerlite Caliper
Featured Products
60mm Stepper Voltmeter - NG066
60mm Stepper Voltmeter - NG066

£27.90
2019 Catalogue Request
Follow us with Rally Design for iPhone, iPad and iPod touch on the iTunes App Store
Follow us with Rally Design for Android on Google Play
Unit 4 St. Augustine's Business Park, Estuary Way, Swalecliffe, Kent, CT5 2QJ • Tel 01227 792792 • Fax 01227 794888
 
Vehicle Identification: References to vehicle marques such as Ford, Vauxhall, Westfield, Caterham etc. are for vehicle fitment identification purposes only.
These references must not be used to imply the vehicle manufacturers have been involved in the design of these products nor endorsement of same.
Product Images: The images shown on this website are for illustration purposes only and may not be that of the actual product. If you are unsure please ask.