Fitment Test SRAM UDH

Legen Sie sich die Prüfteile für das vorhandene Steckachssystem SRAM UDH zur Prüfung bereit.

Disc Brake Side

A12 reduction Sleeve (red)
Extended A12 reduction sleeve (orange)

Sprocket Side

not applicable

Additional Test Components

6 Micro-shims 12x18x0.5
A12-Dropout Gauge 0.5/1.0

Disc Brake Side (left-hand)

Insert the A12 reduction sleeve (red) into the left-hand dropout.

1. Min. Play Test 0.5 mm (Dropout Thickness)

Use the 0.5 mm side of the A12 Dropout Gauge on the back of the left-hand dropout. Use a two-finger wiggle to check whether there is lateral play or not.

Lateral play: Dropout too thin. Go to 1a) Fit Micro Shim.

Zero lateral play: 0.5 mm test result left-hand dropout OK. Proceed to 2) Max. Play Test 1.0 mm.

1a. Fit Micro Shim

Fit a 0.5 mm micro shim between dropout and reduction sleeve.

Go to 1b) Check Fit.

1b. Check Fit

Check whether there is still lateral play or not.

Lateral play: Fit another micro shim and check again.

Zero lateral play: 0.5 mm test result OK. Testing of the left-hand dropout is complete. Max. play test 1.0 not necessary. Note number of required micro shims in the order form. Proceed to 3) Sprocket Side (right-hand).

2. Max. Play Test 1.0 mm (Dropout Thickness)

Use the 1.0 mm side of the A12 Dropout gauge on the back of the left-hand dropout. Check whether there is lateral play or not.

Zero lateral play: Dropout too thick. Go to 2a) Fit Sleeve with Micro Shims.

Lateral play: Test result OK. Testing of the left-hand dropout is complete. Proceed to 3) Sprocket Side (right-hand).

2a. Fit Sleeve with Micro Shims

Fit extended A12 reduction sleeve (orange) with all six 0.5mm micro shims.

Go to 2b) Check Fit.

2b. Check Fit

Check whether there is lateral play now or not.

Zero lateral play: Remove one micro shim and repeat the process.

Lateral play: Test result OK. Custom reduction sleeve required. Note number of remaining micro shims on the order form. Proceed to 3) Sprocket Side (right-hand).

Sprocket Side (right-hand)

3. Testing the Sprocket Side Dropout

A test is not necessary for the right-hand dropout.

Second Measurement Process: Measurement Gauge

Additional test procedure with measuring cylinder and bolt. A well-functioning, accurate Vernier Caliper is required for this.

Disc Brake Side (left-hand)

1. Attach Measurement Cylinder and Bolt

The measurement cylinder must always be positioned against the outer dropout face. The measurement bolt must always be positioned against the inside dropout face. Press the measurement cylinder against the outer face of the dropout and thread the measurement bolt into it by hand.

2. Take Measurement

Measure the complete length of the mounted measurement tool with a Vernier Caliper as illustrated. Enter the measured value rounded to two decimal places in the order form.

And this is how the result is to be evaluated: If the result of the measurement is less than 47 mm or greater than 57.5 mm, mounting a SPEEDHUB is unfortunately not possible.

Proceed to Sprocket Side (right-hand).

Sprocket Side (right-hand)

A test is not necessary for the right-hand dropout.

Have you carried out both measurement processes, entered the results in the online form and submitted the form?

Good job! Now it's our turn ...