Wheel Systems
Service Manual
Bearing
Adjustment
ROLF PRIMA SERVICE MANUAL
FRONT HUB : 2004 – 2014 VIGOR, ÉLAN, DAUPHINÉ, TANDEM, TT, TDF, ARES, 4CX, 58CX, 38CX,
VCX, RALOS, RAGE; 2004 -2007 ASPIN & ECHELON
STEP 1.
Loosen each
of the 3 set
screws ½ turn
Set Screw
STEP 2.
Remove the
adjustable
side end cap
Access
Hole
Adjustable
End Cap
1. Loosen the three (3) set screws by inserting a 2mm Hex wrench in the access hole in the hub shell.
For 2007 and earlier models, the hub will have one (1) set screw and the access hole may be on
the hub shell outboard of the flange (not shown). For 2007 and later models, the access hole will
be through the outer diameter of the flange (shown).
2. Remove the adjustable side end cap from the hub. If needed, thread a M6 bolt into the adjustable
side end cap and pull on the bolt for a better grip, or drive the end cap out with a drift. Once the
adjustable side end cap is removed, the adjustment collar will be visible.
Push
and hold
Adjustment
Collar
STEP 3.
Push on Adjustable Collar
and Non-Adjustable
Side End Cap to Remove
Bearing End Play
Non-Adjustable
Side End Cap
Figure 8
Push
3. Place the wheel on a work surface with the non-adjustable side end cap facing downward. Push
downward on the hub to ensure that the non-adjustable end cap is fully seated against the hub
bearing. Push the adjustment collar inward, ensuring it is fully seated against its hub bearing.
STEP 4.
Replace
Adjustable
Side End Cap
STEP 5.
Tighten Set Screws
Adjustable Side
End Cap
4. Replace the adjustable-side end cap carefully, so as not to move the axle or
adjustment collar. Hold the non-adjustable-side end cap to prevent movement.
5. Tighten the set screws. Check adjustment. If bearing play remains, repeat the above steps. This
can also be performed without removing the adjustable side end cap if you are careful to push on
the adjustment collar and not the adjustable side endcap.
2
150 Shelton McMurphey Blvd., Ste 101, Eugene, OR 97401 USA • 541.868.1715 • Fax 888.851.3748 • www.rolfprima.com
ROLF PRIMA SERVICE MANUAL
REAR HUB 2004 – 2014 VIGOR, ÉLAN, DAUPHINÉ, TANDEM, TT, TDF, ARES, 4CX, 58CX, 38CX.
VCX. RALOS, RAGE; 2004 –2007 ASPIN & ECHELON
STEP 1.
Loosen 3 set screws
½ turn
STEP 2.
Remove Adjustable
End Cap
Figure 10
Adjustable Side End Cap
Access Hole
1. Loosen each of the three set screws ½ turn by inserting a 2mm hex wrench in the access
hole in the hub shell.
2. Remove the adjustable side end cap from the hub. If needed, thread a M6 bolt into the adjustable side end cap and pull on the bolt for a better grip, or drive the end cap out with a drift. With
the adjustable side end cap removed, the adjustment collar is visible.
STEP 3.
Push on Adjustment Collar and NonAdjustable Side End Cap
Figure 12
Push
Adjustment
Collar
Adjustable Side
End Cap
Non-Adjustable
Side End Cap
Push
3. Apply inward pressure on the non-adjustable side end cap and the adjustment collar simultaneously; making certain both parts are contacting the hub bearings. It is not necessary to
maintain pressure.
STEP 4.
Replace Adjustable
Side End Cap
3
150 Shelton McMurphey Blvd., Ste 101, Eugene, OR 97401 USA • 541.868.1715 • Fax 888.851.3748 • www.rolfprima.com
ROLF PRIMA SERVICE MANUAL
4. Replace the adjustable-side end cap carefully, so as not to move the axle or adjustment collar. Hold the non-adjustable-side end cap to prevent movement.
5. Tighten the three set screws. If bearing play remains, repeat the above steps.
FRONT AND REAR HUBS: 2008 – 2014 ASPIN AND ECHELON (INCLUDING SL MODELS),
58RSC, 38RSC, ECX, RALOS XR, RAGE XR; 2006 – 2007 APEX & TEMPO
These hubs have no bearing adjustment. Axle end play typically indicates worn bearings
or axle. Inspect these parts and replace as needed. See the bearing replacement instructions in this manual.
2003 MODEL ÉLAN AND VIGOR FRONT HUB
These hubs have no bearing adjustment. Axle end play typically indicates worn bearings
or axle. Inspect these parts and replace as needed. See the bearing replacement instructions in this manual.
2003 MODEL ÉLAN AND VIGOR REAR HUB [refer to diagram below]
Axle
End Cap
Locknut
(19mm)
Adjustable Nut
(19mm)
External
Bearing
Seal
1. Place the hub into an axle vise with free hub body facing downward.
2. Using the two 19mm wrenches, loosen the axle lock nut and adjustable nut so that
both move freely.
3. Tighten the adjustable nut until it just contacts the bearing. Using the two 19mm
wrenches as before, hold the adjustable nut while turning the lock nut tightly up
against it.
4. Rotate the axle to feel for tightness plus axle end play. If too tight, repeat procedure
but loosen adjustable nut slightly. If too loose, tighten adjustable nut slightly.
4
150 Shelton McMurphey Blvd., Ste 101, Eugene, OR 97401 USA • 541.868.1715 • Fax 888.851.3748 • www.rolfprima.com