Removing the rear wheel from your Specialized Riprock is a straightforward process that allows for maintenance, tire changes, or transport, and can be easily done with a few basic tools.
The key to successfully removing and reinstalling your Specialized Riprock's rear wheel involves carefully guiding the wheel out and ensuring the brake disc is properly aligned upon reinstallation, re-torquing to the specified measurement.
Understanding Your Specialized Riprock's Rear Wheel System
Specialized Riprock bikes typically feature a rear wheel secured by a thru-axle or quick-release mechanism, combined with disc brakes. Understanding this setup is crucial for smooth removal and reinstallation.
Tools You'll Need
Before you begin, gather the following tools:
- Allen keys (typically 5mm or 6mm for thru-axles) or an open-end wrench (for quick-release nuts, though less common on Riprock models).
- Torque wrench (essential for proper reinstallation).
- Clean rag (optional, for wiping chain or components).
- Gloves (optional, to keep hands clean).
Step-by-Step Guide to Removing the Rear Wheel
Follow these steps for a safe and efficient removal of your Specialized Riprock's rear wheel:
1. Preparation
- Shift to the Smallest Cog: Before lifting the bike, shift the rear derailleur into the smallest gear (highest number on the shifter, smallest cog on the cassette). This creates slack in the chain, making wheel removal easier.
- Lift and Stabilize the Bike: You can either:
- Invert the bike (turn it upside down) and rest it on its handlebars and seat. Place a towel under these contact points to prevent scratches.
- Use a bike repair stand.
- Open the Brake Caliper (Optional but Recommended): Some riders find it easier to remove the wheel if the brake caliper is slightly opened or the pads are pushed apart. Be cautious not to contaminate the pads or rotor.
2. Loosening the Axle
- For Thru-Axle Systems:
- Locate the thru-axle lever or bolt on the non-drive side (opposite the chain).
- If it's a lever, open it. If it's a bolt, use the appropriate Allen key to loosen and unthread it.
- Once loose, pull the thru-axle completely out of the wheel and frame.
- For Quick-Release Systems (Less common on Riprock, but good to know):
- Open the quick-release lever on the non-drive side.
- Loosen the adjustment nut on the drive side (side with the chain) by turning it counter-clockwise a few turns until the wheel can drop freely.
3. Guiding the Wheel Out
- Push the Derailleur Back: With one hand, gently push the rear derailleur body back and down to clear the cassette from the chain.
- Guide the Wheel Out: With the other hand, carefully guide the wheel out of the dropouts. Pull the wheel downwards and slightly forwards, ensuring the brake disc clears the caliper and the chain fully disengages from the cassette. Avoid forcing it to prevent damage to the disc or chain.
Reinstalling Your Specialized Riprock Rear Wheel
Reinstallation is essentially the reverse process, with careful attention to brake disc alignment and proper torque.
1. Positioning the Wheel
- Engage the Chain: With the bike still inverted or in the stand, carefully place the chain onto the smallest cog of the cassette.
- Align the Wheel: Bring the wheel up into the frame's dropouts. Ensure the cassette teeth are sitting correctly in the chain.
2. Engaging the Brake Disc
- Guide the Brake Disc: This is a crucial step. As you push the wheel fully into the dropouts, guide the brake disc back into the caliper. You might need to gently spread the brake pads apart slightly with your fingers or a clean, blunt tool to create enough space. Ensure the disc slides smoothly between the pads without bending.
3. Securing the Axle
- Insert the Axle: Once the wheel is fully seated in the dropouts and the brake disc is correctly positioned, reinsert the thru-axle through the non-drive side. Thread it clockwise until it's finger-tight.
- Torque the Axle: Using your torque wrench, re-torque it to 10 Newton meters (Nm). This ensures the wheel is securely fastened without over-tightening.
- For quick-release systems, close the lever with firm pressure – it should leave a slight impression on your palm.
4. Final Checks
- Spin the Wheel: Give the wheel a spin to ensure it rotates freely without rubbing.
- Check Brakes: Squeeze the rear brake lever several times to ensure the pads engage correctly and the brakes feel firm.
- Shift Gears: Briefly shift through a few gears to confirm proper derailleur function.
Quick Reference Table: Rear Axle Torque Specification
| Component | Torque Specification | Notes |
|---|---|---|
| Rear Thru-Axle | 10 Nm | Critical for safety and performance. |
Important Considerations & Tips
- Cleanliness: Avoid touching the brake rotor or pads with your bare hands, as oils can contaminate them and reduce braking performance. If contamination occurs, clean with rubbing alcohol or a specific disc brake cleaner.
- Chain Management: If the chain is particularly dirty, this is a good opportunity to give it a quick clean while the wheel is out.
- Derailleur Hanger: Be gentle with the rear derailleur. An accidental bend can lead to poor shifting. For more on bike maintenance, consult a guide on basic bicycle care.
By following these steps, you can confidently remove and reinstall the rear wheel on your Specialized Riprock, keeping your bike in top condition for your next adventure.
