Topeak TetraFender G1/G2/R1/R2 Installation and Compatibility Guide

Product Overview

The Topeak TetraFender G1/G2/R1/R2 are designed to provide protection from road spray and debris for your bicycle. This guide details their installation, compatibility, and features.

Compatibility

The TetraFender series offers different models optimized for various wheel and tire sizes.

TetraFender G1 & G2 Compatibility

Wheel Size: 650C - 700C

Tire Width: 32mm - 50mm

Mounting Width:

Front Fork (G1): 70mm - 100mm
Seatstays (G2): 70mm - 100mm

Diagram illustrating compatibility for TetraFender G1 (front fork) and G2 (seatstays), showing wheel size, tire width, and mounting width ranges.

TetraFender R1 & R2 Compatibility

Wheel Size: 700C

Tire Width: 25mm - 32mm

Mounting Width:

Front Fork (R1): 55mm - 85mm
Seatstays (R2): 55mm - 85mm

Diagram illustrating compatibility for TetraFender R1 (front fork) and R2 (seatstays), showing wheel size, tire width, and mounting width ranges.

Note: Not suitable for mounting on frames with unique geometries.

Illustration indicating that these fenders are not recommended for bicycles with unusual frame designs.

The TetraFender has a mounting length of 200mm. Seatstays and front forks must not contain any obstacles that prevent secure mounting.

Diagram showing the 200mm mounting length of the TetraFender and emphasizing the need for clear mounting surfaces on the fork and seatstays.

Parts Included

Exploded view diagram showing all included parts for the TetraFender G1/G2/R1/R2, with numbered components.

1. Mounting base A
2. Mounting base B
3. Rubber pad
4. Velcro straps
5. Strap tensioner
6. Front component
7. Rear component
8. Allen key 2.5mm
9. Adjustable mounting position indicator
10. Adjustable spacer
11. 3M Reflective Decal groove
12. 3M Reflective Decal (x2)
13. Strap (G1, R1) (x2)
14. Strap (G2, R2) (x2)

Installation Instructions

Step 1: Prepare Mounting Base

Unscrew the 6 bolts of the mounting base using the 2.5mm Allen key. ?

Illustration showing the 2.5mm Allen key being used to unscrew bolts from the mounting base.

Step 2: Mount to Fork/Seatstays

Front Fork Mounting (G1/R1): Ensure the front fork width is within the compatible range (70-100mm for G1, 55-85mm for R1).

Diagram showing the TetraFender G1/R1 being positioned on the front fork, highlighting the compatible width ranges.

Seatstay Mounting (G2/R2): Ensure the seatstay width is within the compatible range (70-100mm for G2, 55-85mm for R2).

Diagram showing the TetraFender G2/R2 being positioned on the seatstays, highlighting the compatible width ranges.

Important Clearance Requirements:

Front Fork Clearance: Minimum 8mm for G1/G2, Minimum 20mm for R1/R2.
Seatstay Clearance: Minimum 8mm for G1/G2, Minimum 20mm for R1/R2.

Diagrams illustrating the required tire clearance: 8mm for front forks (G1/G2) and 20mm for seatstays (R1/R2).

⚠️ Warning: Do not install the TetraFender on screw holes, hose stops, or brake hoses. Ensure the fender is not obstructed by these components.

Illustration warning against mounting the fender over brake hoses, cable guides, or screw holes.

Step 3: Secure with Straps

Release the Velcro straps (4) on both sides of the mounting base and adjust the mounting position to the proper height.

Diagram showing how to release and adjust the Velcro straps on the mounting base.

Take the Velcro straps (13 or 14) with the metal loop and route them around the front forks or seatstays.

Illustration demonstrating routing the Velcro straps around the bicycle fork or seatstays.

Buckle the metal loop into the hook of the strap tensioner (5).

Diagram showing how to connect the metal loop of the strap to the hook of the strap tensioner.

Adjust the strap tensioner hook to the lowest position using the 2.5mm Allen key (8). ?

Illustration showing the use of the 2.5mm Allen key to adjust the strap tensioner to its lowest position.

Tighten the straps to secure the mounting base to the bike frame. Use the 2.5mm Allen key to tighten the mounting base and bend slightly. IMPORTANT NOTE: Do not overtighten the mounting base. ⚠️

Diagram showing the final tightening of the mounting base with the Allen key, with a note to avoid overtightening.

Angle Adjustment

Adjustable aluminum struts allow for quick, perfect alignment and good tire coverage.

Diagram illustrating the angle adjustment feature using adjustable struts for optimal alignment and tire coverage.

If the TetraFender is misaligned to the left side, please adjust the left mounting position upwards. The adjustable spacer (10) can be used to fine-tune the position.

Illustration showing how to adjust the mounting position upwards if the fender is misaligned to the left, possibly using the adjustable spacer.

Note on Frame Finish: To avoid marring the frame finish, ensure that the hook and loop fastener is installed and used correctly. The softer loop side should contact the frame surface only. ⚠️

Diagram warning to use only the soft side of the Velcro straps against the bicycle frame to prevent scratches.

3M Reflective Sticker

Affix the 3M Reflective Decal (12) into the designated groove (11) for increased visibility.

Illustration showing the placement of the 3M reflective sticker into the groove on the fender.

Important Warnings

Please read and follow these warnings carefully to ensure safe and proper use of your TetraFender.

⚠️ Alignment: Ensure the TetraFender is aligned with the tire.
? Torque: After installation, tighten all bolts to the recommended torque value (1.5 Nm).
? Tire Clearance:
- Front Fork: Must be larger than 8mm.
- Seatstays: Must be larger than 20mm.
⚠️ Damage/Injury Risk: Misalignment or inadequate tire clearance can cause damage to the TetraFender, your bike frame, or result in rider injury.
? Cleanliness: Clean the frame/fork mounting area prior to installing the TetraFender.
✔️ Post-Ride Check: Check the TetraFender after every ride for secure mounting. If there is any exaggerated movement, stop riding immediately.
? Riding Style: Do not engage in extreme riding, such as jumping, when using the TetraFender.
? Frame Protection: When fixing mounting straps, ensure the softer loop side contacts the frame to prevent marring the finish.

Diagrams and text reinforcing warnings about proper alignment, tire clearance, and safe installation practices.

Warranty Information

Warranty Period: 2-year warranty on all mechanical components against manufacturer defects only.

Warranty Claim Requirements: To obtain warranty service, you must present your original sales receipt. If returned without a receipt, the warranty period will be assumed to begin on the date of manufacture.

Warranty Void Conditions: All warranties will be void if the product is damaged due to user crash, abuse, system alteration, modification, or used in any way not intended as described in this manual.

* Specifications and design are subject to change without notice.

For any questions, please contact your Topeak dealer. For USA customer service, call: 1-800-250-3068. Visit Topeak online at www.topeak.com.

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