Wheel Truing Stand TRUE-PRO

Axle Holder

2 instructions manual
Wheel truing must be done at your own risk

Pillar

Push down the wheel to set it in the deepest position on the Axle Holder when you tighten the quick release skewer.

Components

Vertical Gauge Side Gauge
Vertical Gauge Adjust Knob
Gauge Stay Leg Lock Knob Body
Arm Arm Lock Side Gauge Adjust Knob
Thank you for choosing the MINOURA TRUEPRO 2 portable wheel truing stand featuring convenient Combined Pillar System (CPS). CPS keeps the wheel in the almost same position by moving both right and left side pillar together even on different hub width wheels. It helps you for minimizing your working time. Also, newly designed gauges that check vertical and horizontal movement of the wheel are intuitive and easy to use. TRUE-PRO 2 folds down completely for easy transport and compact storage. Please read this instructions manual carefully before use and keep handy at all times for future references.
PILLARS Both right and left side Pillars are connected in the body so they will move together at the same time. You should hold both Pillars with both hands when opening or closing them. AXLE HOLDER Axle Holder can adjust its angle to keep parallel at any width to fit hubs properly. (see Fig. A) It is crucial to set the wheel into the deepest position of the Axle Holder by pushing down the wheel when setting up the wheel on True-Pro 2 to get better result. If one side has been lifted up due to bad installation, the wheel won't become symmetrical.

Important Notes

Do NOT use True-Pro 2 for any purpose other than instructed such as displaying bike on it. This Combined Pillar System is not 100% perfect so we recommend you to use a wheel dishing tool together for much more precise adjustment. We don't guarantee any result by using this stand. Maintain the Axle Holder is set at right angle against the axle. If it has been angled, you cannot expect correct result.

(Fig. A)

How to Operate

Foldable Vertical Gauge

(Fig. B) (Fig. D) Checking Position
The metal tip on the Vertical Gauge can be removed by loosening two screws if you don't wish to scratch the soft carbon rim surface. However, we recommend you keep the metal tip in contact at all times for getting clearer sound. SIDE GAUGE Side Gauge is for checking the horizontal movement of the wheel. When the rotating wheel comes in contact with the Side Gauge, you will hear a scratching sound. To adjust the opening of Side Gauge, rotate Side Gauge Adjust Knob, then both Arms will move together at the same time. (see Fig. B)

(Fig. C)

VERTICAL GAUGE Vertical Gauge is for checking the vertical movement of the wheel. When the rotating wheel comes in contact with the Vertical Gauge, you will hear a scratching sound. To adjust the gauge position, rotate the Vertical Gauge Adjust Knob. (see Fig. B) Vertical Gauge should be positioned 1 - 2 mm away from the rim. (see Fig. C) If the movement is so heavy, you should place the gauge farther, then set it closer gradually as the adustment is being done. If you mount a wheel with tire for just checking the horizontal movement only, you can fold down the Vertical Gauge manually. (see Fig. D)

Side Gauge should be positioned 1 - 2 mm away from the rim side wall. (see Fig. C) If the movement is so heavy, you should place the gauge farther, then set it closer gradually as the adustment is being done. If you already set the best opening size of the Side Gauge to your rim but the wheel has a tire, you can open the Arm manually for quicker installation. To do so, hold the Arm then open it until it is locked at the widest position. (see Fig. E)

(Fig. E)

The metal tip of the side gauge can be retracted by turning the tip metal piece if you worry about damage to the side of your rim. However, the contact sound will have to become smaller so listen more carefully.

How To Use T-Gauge2

T-Gauge2 (Fig. H)
Normal Position (metal tip is projected)
Carbon Position (metal tip is retracted)

(Fig. F)

How To Fold Down
The T-Gauge2 checks the gauge position if it's located in the exactly center of the pillars so your wheel should be able to be trued as symmetrically as possible. It's crucial to check the gauge position at the point where you work on the actual wheel. Also you should check regularly before using TruePro 2 to avoid mistakes.

(Fig. G)

True-Pro 2 is completely foldable for easier transportation and compact storage. To fold down, follow the steps; 1. Shut the Side Gauge as narrow as possible. 2. Loosen the Lock Knob. 3. Close the Pillars. 4. Fold the gauges downward and push toward the Pillars. 5. Flip up the Leg until it touches the Gauge Stay. 6. Tighten the Lock Knob.

T-Gauge2 Setup Position

(Fig. I)
T-Gauge2 should be installed on the Axle Holder as deep as the case of wheel. And maintain the Axle Holder angle to the T-Gauge2's shaft at right angle. To setup the T-Gauge2, adjust the pillar distance, insert the shaft into the Axle Holders, adjust the Axle Holder angle at right angle, then tighten the knobs. Please note the T-Gauge2 won't be locked in the position. It should move freely. While pushing the T-Gauge2 downward, rotate it and put the Side Gauges close to the flat bar part of the T-Gauge2.
Be careful not to pinch your fingers between the body, stay and leg. Do not try to store the gauge between the pillars. If strong sideward shock is applied, the plastic gauges should be broken.
Check the clearance between T-Gauge2 and each Side Gauge. If each clearance is equal, your gauge position is perfect. (see Fig. J)

About Offset Wheel Setting
At first, you should understand that you should fix the vertical movement prior to the horizontal movement, especially on the rear wheel because of its unique wheel system named "Offset".

Check these clearances

Offset Wheel

(Fig. J)

If one side is wider and another side is closer, you need to adjust the gauge position with the following steps;

(Fig. L)

Tensioning the front wheel is much easier than the rear. Rear wheel tensioning requires Offset Tensioning. The rear wheel has a different spoke angle pattern when looking at it from behind. (see Fig. L) A rear hub is not symmetrical to the wheel. Flanges can be far from center. Because the rear hub must have extra space for the set of transmission gears, you will need to true using Offset Tensioning. If offset wheel, the torque works mostly only to the right side (gear side) spokes. Because right side spokes should be assembled more vertically than left side. So you should understand that right side spoke tension is more important than left side spoke's one in this offset assembling. Well adjusted right side spokes can keep your wheel stable in the future. Left side spoke tension is just a help. Understand that the nipple should not be loosened at any time. Nipples are made from softer alloys or brass and are prone to stripping easily.

(Fig. K)

1. Loosen two screws which are located underneath the gauge body with a 4 mm hex wrench. (see Fig. K) 2. Adjust the gauge position side by side until both clearances between the T-Gauge2 and the Side Gauges become equal. 3. When the position is fixed, tighten both bolts firmly. The gauge may move when the bolt is frmly tightened. Hold the gauge by your hand.
If you have pushed the Pillars backand-forth or hit the wheel on the stand sideward, the True-Pro2 itself will have to become deformed and will lose the center position. Hold both Pillars at once by both hands and move sideward only.
You must use a correct spoke wrench which fits the nipples perfectly, especially when you use light alloy nipples on your wheel. If you use wrong size one, the nipple will become round easily and you cannot continue your work any more.
How To Fix Vertical Movement
The vertical movement within 3 mm may not cause any troubles. But if you want to be it as zero as possible for smoother ride, you should try the following process again and again. Be sure, in this case, you should tighten both side of the nipples equally.
If the rim shakes inward, do NOT try to loosen the nipples. Tighten both far side nipples. This is because the nipples are made of soft material, so its thread can be broken easily by loosening.
You set the wheel on the True-Pro 2 and see the Vertical Gauge. Put the tip of the Vretical Gauge close to the surface of the rim.

Tighten the spokes as below; Group-A nipples about 1/8 turns Group-B nipples about 1/4 turns Group-C nipples about 1/2 turns Then check the vertical movement again with rotating the wheel slowly. If the wheel moves yet, continue the process again.
Rotate the wheel slowly, and check the vertical movement. Do not spin fast.
If you hear a strange sound or see narrow metal "lines" or residue, your nipple will fail soon. Do NOT apply any lubricant to quiet the sound. Put a new nipple on immediately. Do NOT tighten the spoke more than 1/2 turns at one time. Wheel truing must be done step by step. Otherwise, you will loose the spoke tension balance completely.
Attach tapes to two spokes; one is in the beginning and another one is in the ending of vertical movement.
Make three (3) groups of spokes between your tape markers as below;
How To Fix Horizontal Movement
The horizontal movement within 2 mm may not cause any troubles. But if you want to be it as zero as possible for smoother ride, you should try the following process again and again.

A B C B A

(Fig. M)
You set the wheel on the True-Pro 2 and see the Side Gauges. Put the tips of them close to the surface of the rim side wall. Do not make them touch the rim.
Group-A: 3 or less spokes in the beginning and in the ending of vertical movement. Group-B: 3 or less spokes between Group-A, except for the center spoke. Group-C: The center 1 or 2 between the tapes.
Rotate the wheel slowly, and check the horizontal movement. Do not spin fast. 3. Attach tapes to two spokes; one is in the beginning and one is in the ending of horizontal movement. 4. Make three (3) groups of spokes between your tape markers as below;
If the rim moves to outward, tighten both side nipples.
Group-A: 3 or less spokes in the beginning and in the ending of horizontal movement. Group-B: 3 or less spokes between Group-A, except for the center spoke. Group-C: The center 1 or 2 between the tapes.
2. Any used or new True-Pro 2, either purchased or given through a shop, internet auction site or person-to-person will not be covered under Warranty Service, except under special circumstances to be determined by Minoura. 3. Original User must keep the original sales reciept and must present a photocopy of the reciept together with a claim report to obtain Warranty Service. 4. The warranty period shall start from the date of purchase. If the reciept is not presented, Minoura reserves the right to extend or deny Warranty Service. 5. All warranties will be void if the True-Pro is damaged due to user's abuse, disassembly, unauthorized alteration or midification, or used in any way not intended as described in the instructions manual. 6. Only issues caused by manufacturer's defects will be covered to all users at Minoura's expense. The period expires in a maximum of 7 years after the last production. 7. Minoura may offer paid service for in or out of warranty products that may include, but is not limited to, repair, replacement and shipping expenses. For more detailed information, refer both the attached "MINOURA LIMITED WARRANTY POLICY" card and our web site (www.minoura.jp). Web can offer you the latest and more correct information.

If the rim moves to right, tighten the left side nipples. Do NOT loosen the right side nipples. This is because the nipples are made of soft material, so its thread can be broken easily by loosening.
Tighten the spokes as below; Group-A nipples about 1/8 turns Group-B nipples about 1/4 turns Group-C nipples about 1/2 turns Then check the horizontal movement again with rotating the wheel slowly. If the wheel moves yet, continue the process again.
If you hear a strange sound or see metal "lines" or residue, your nipple will fail soon. Do NOT apply any lubricant to quiet the sound. Put a new nipple on immediately. Do NOT tighten the spoke more than 1/2 turns at one time. Wheel truing must be done step by step. Otherwise, you will loose the spoke tension balance completely.

For More Information.

* Please contact the shop first where you purchased True-Pro 2.
MINOURA Japan Headquarters
(for ALL customers) 1197-1 Godo, Anpachi, Gifu 503-2305 Japan Phone: 81-584-27-3131 + Fax: +81-584-27-7505 Email:minoura@minoura.jp URL: www.minoura.jp
There are several ways to true the bike wheel. Above is just one example and you don't have to follow our way. You should ask well-educated mechanics to get more effective techniques.

MINOURA North America

(for U.S. residents only) 1996 East Avenue, Hayward, CA 94541 U.S.A. Phone: -510-538-Fax: 1-510-538-5899 Email:support@minourausa.com ** For countries not listed, please see our web site at www.minoura.jp to find the Minoura distributor in your country and contact them for service.

Limited Warranty Policy

1. Only the original user who purchased this True-Pro 2 in brand-new and unopened condition at an authorized Minoura dealer, authorized internet retailer or authorized mail order house (hereafter "Original User") is covered under the Minoura Warranty Service Program (hereafter "Warranty Service").

Made in Japan

True-Pro2 Resolution Diagram

Screw M4x12

TG-6 TG-7 Cap Bolt M5x25 TG-3 Cap Bolt M6x25 TG-9 TG-4 TF-2 TG-5 Screw M4x10