Sun bicycles RECUMBENT owners manual www.sunbicycles.
to make sure they are engaging properly. Check your tires for proper air pressure as indicated on the sidewall of the tires. Make sure all quick release levers on wheels and seat are secure. Also check for any other possible mechanical problems. 9. Do not “stunt ride” or hitch a ride on other vehicles. 10. Do not ride carelessly. 11. Use extreme caution when riding in wet, icy or otherwise hazardous conditions. CONGRATULATIONS! Congratulations on your Sun Bicycles Recumbent purchase.
Night Riding Tips 1. Your bicycle or tricycle is equipped with front, rear, wheel and pedal reflectors. They should be kept clean at all times. Reflectors should never be removed from your bicycle or tricycle. 2. Always use an appropriate lighting system when riding at night. 3. Ride with extreme caution. Be alert for cars, pedestrians, runners and other bicyclists. Ride defensively and watch for road hazards. 4.
Sun Bicycles Recumbent Riding Tips Continued 10. When going over a bump, lean forward to spread your weight evenly between the pedals and seat back. 11. Before coming to a stop, gear down (while spinning the pedals); this will enable you to start again in a low gear.
PART 2. “D” Alignment Button “A” Stem ADJUSTMENT Your Sun Bicycles Recumbent is partially assembled at the factory. However it is intended to be assembled and adjusted to fit the end user by a professional bike shop. The following instructions are intended for the dealer to use as a guide in his or her assembly. And should help you with basic adjustments. “E” Left or Right Handlebar “B” Center Handlebar Handlebar Adjustment Figure 1 Under Seat System (EZ-3 USX, X3 USX and M3 UAX) 1.
Direct Steer (EZ-Tadpole SX, T3 CX and T3 AX) 1. Handlebars “A” can be adjusted inward or outward for desired comfort from where they attach to the Steer Tube “B” 2. Bar Ends “C” can be rotated and moved forward or backward for desired comfort. 3. As the Bar End “C” is slid closer to the Steer Tube “B” you will experience faster steering. You should start toward the end of the Handlebar “B” to get a feel for what you like then adjust as necessary.
T-Bar System (EZ-Tomahawk CX, X2 CX/AX and X3 AX) “B” Lower Clamp 1. Stem can be pivoted for desired comfort from the Lower Stem “A”. 2. Stem can be lengthened or shortened for desired comfort from the Lower Clamp “B”. 3. Handlebar can be rotated for desired comfort from the Handlebar Clamp “C”. “A” Lower Stem WARNING: Make sure once you have made all your handlebar and stem adjustments, that you do not have any leg or knee interference with the handlebar or stem.
Seat Backrest Adjustment Adjustment of backrest angle 1. Backrest angle can be adjusted by loosening Seat Strut Clamps “A” on rear struts. 2. Then position backrest at the desired angle. 3. Re-tighten clamps. “A” Strut Clamps Figure 8 NOTE: Some bikes & trikes have a forward and rear mount position for the lower struts. Always use the rear most mounts. Only use forward mounts if needed for shorter riders to get the seat back angle you desire.
Seat Adjustment Square Slide System (EZ-1 SX, EZ-Sport CX and EZ-Tandem CX/AX) 1. Seat can be adjusted fore and aft by loosening the two Quick Release Seat Pins “A” under the seat. 2. Position seat in the following manner: When seated, your knee should be just slightly bent when the forward foot is in the farthest position. 3. Tighten the two quick release seat pins under the seat. “A” Quick Release Seat Pins CAUTION: Never fasten Quick Release Seat Pins by rotating the quick release lever.
Round Fixed Pin Slide System (EZ-3 USX HD, EZ-Tadpole SX and X3 SX) “A” Quick Release Seat Pins 1. Seat can be adjusted fore and aft by loosening the two Quick Release Seat Pins “A” under the seat. 2. Position seat in the following manner: When seated, your knee should be just slightly bent when the forward foot is in the farthest position. 3. There are multiple positions that the Quick Release Seat Pins can be inserted to afford more adjustment. 4. Tighten the two quick release pins under the seat.
Round Fixed Pin Slide System w/Tilt Adj. (EZ-Tomahawk) 1. Seat can be adjusted fore and aft by loosening the two Quick Release Seat Pins “A” under the seat. 2. Position seat in the following manner: When seated, your knee should be just slightly bent when the forward foot is in the farthest position. 3. There are multiple positions that the Quick Release Seat Pins can be inserted to afford more adjustment. 4. Tighten the two quick release pins under the seat. 5.
“B” Seat Slide Stays Track System w/Tilt Adj. (X1 SX, X2 CX/AX, X3 AX, X3 USX and M3 UAX*) 1. Seat can be adjusted fore and aft by loosening the two Quick Release Seat Pins “A” under the seat. 2. Position seat in the following manner: When seated, your knee should be just slightly bent when the forward foot is in the farthest position. 4. Tighten the two quick release pins under the seat. 5.
Round Fixed Pin Slide System w/Sling Seat (T3 CX and T3 AX) 1. Seat can be adjusted fore and aft at fixed positions by removing the Quick Release Seat Pin “A” under the seat. 2. Position seat in the following manner: Along with adjusting the boom (see Adjustable Boom page 15), when seated, your knee should be just slightly bent when the forward foot is in the farthest position. 3. There are multiple positions that the Quick Release Seat Pin can be inserted to afford more adjustment. 4.
Post System (EZ-Sunray) “B” Seat Back Knob Release 1. The seat post can be adjusted just like any conventional bicycle. 2. Seat back can be adjusted up and down by loosening the Seat Back Quick Release “A”. 3. Position seat in the following manner: When seated, your knee should be just slightly bent when the forward foot is in the farthest position. 4. The Seat Back Knob “B” fixes the Seat back pad onto the seat back mast and is not adjustable.
Adjustable Boom (EZ-Tadpole SX, T3 CX and T3 AX) 1. The seat should be set to its furthest rear (see seat adjustment section for your trike). 2. Loosen the Boom Clamp Bolts “A” or “B” boom clamp lever and position the boom so that when seated, your knee should be just slightly bent when the forward foot is in the farthest position. 3. Re-tighten the Boom Clamp Bolts “A” or “B” boom clamp lever enough to keep the boom from slipping. 4.
Front Wheel Removal Tadpole (EZ-Tadpole SX, T3 CX and T3 AX) 1. Remove brake caliper. 2. Remove threaded Hub Dust Cap “A”. 3. Remove Wheel Retaining Bolt & Washer “B” 4.
Rear Wheel Removal Keyed Axle System (EZ-3 USX HD, X3 USX and M3 UAX) 1. Remove brake caliper. 2. Remove Hub Retaining Bolt and Washer “A”. 3. Hub is “keyed”, remove by pulling straight off of the axle. 4. Note: Spacer and washer positions in Figure 29 & 30.
Pinned Axle System (X3 SX) “A” Nylock Retaini n g Nut & Wash e r Freewheeling side: 1. Remove Nylock Retaining Nut & Washer “A”. 2. When reinstalled DO NOT OVER TIGHTEN the retaining nut. The nut should be tightened then backed off ½ turn to leave 1 to 2mm of play. 3. Note: Spacer “B” must be installed as shown in Figure 32. Drive side: See next page.
X3 SX (Continued) Drive side: 1. Remove Nylock Retaining Nut & Washer “C”. 2. When wheel is installed, Drive Pins “D” must be inserted into the corresponding drive pin holes in the hub. 3. When reinstalled, this side CAN be tightened securely.
Splined Axle System (X3 AX) 1. Brake caliper removal is not necessary. 2. Remove Hub Retaining Bolt and Washer “A”. 3. Hub is “splined & tapered”, remove by pulling straight off of the axle. 4. When installing wheel onto the axle, apply light grease to the splined portion of the Axle Spindle “B”.
Steering Linkage Adjustment “C” Fork Rod End Jam Nut Delta Trike System (EZ-3 USX HD, X3 USX and M3 UAX) 1. Steering linkage attaches from the Pitman Arm “B” to the Fork Steering Pivot Tab “D” on the front fork. 2. In order for the Steering Linkage “E”, not to interfere with the moving crank, loosen the Rod End Jam Nuts “C”, position the Steering Linkage “E” so that the crank clears then tighten the Rod End Jam Nuts “C”.
Tadpole Trike System (EZ-Tadpole SX, T3 CX and T3 AX) “A” Steering Linkage 1. Steering Linkage “A” should be in the OUTSIDE holes on the Steering Arm Tab Position 1 “B” for the T3 AX. 2. Steering Linkage “A” should be in the INSIDE holes on the Steering Arm Tab Position 2 “C” for the EZ-Tadpole SX and T3 CX.
Setting Toe In For Tadpole Trikes (0mm to 3mm recommended): 1. With the trike on the ground and wheels fixed in the straight ahead position, measure from the front of the left wheel centerline “E & F” to the right side. Record that measurement. Repeat the above for the rear left to the right side (“E & G”) and record the measurement. The measurement should be the same or up to 3mm toed in. 2.
Rear Unit Keyed Axle System (EZ-3 USX HD, X3 USX and M3 UAX) “A” Axle Freewheel Removal: 1. Remove Freewheel Adapter Retaining Nut “B” from Axle “A”. 2. Freewheel Adapter “D” is “keyed”, remove by pulling straight off of the axle. 3. Note: Component order in Figure 47.
“D” Mid-Drive Sprocket Pinned Axle System Adjustment (X3 SX) 1. Rear chain adjustments is accomplished by loosening the Upper Rear Unit Attaching Bolts “A” and Lower Rear Unit Carriage Bolts “B”, re-tension the chain and tighten the bolts. 2. Rear chain alignment is accomplished by positioning the Fixed Sprocket “C” in line with the Mid-Drive Sprocket “D”.
Splined Axle System Adjustment (X3 AX) “A” Upper R ear Uni t Attaching Bolt 1. Rear chain adjustment is accomplished by loosening the upper rear unit attaching bolts “A” and Lower Rear Unit Carriage Bolts “B”, re-tension the chain and tighten the bolts.
“B” Frame Pivot Bolt Suspension/Folding Frame Suspension/Folding System (EZ-3 USX HD) 1. Shock “A” can be adjusted for increased or decreased spring tension by turning the outer barrel of the shock by hand. 2. Frame Pivot Bolt “B” must have permanent loctite on the threads in the event that it is removed and replaced. 3. Frame Pivot Bolt Washers “C” are installed between the frame and Frame Pivot Bearings “D”.
Cross System (EZ Tomahawk, EZ-Tadpole SX, T3 CX and T3 AX) Chain Routing 1. See Figure 56 below. Tadpole Trike route top chain on OUTSIDE groove of pully. inside route outside route Tomahawk route top chain on INSIDE groove of pully.
PART 3. CARE AND MAINTENANCE WARNING: Do not ride your Sun Bicycles Recumbent until all brakes have been checked and are functioning property. Keep all nuts, bolts and quick release levers well tightened. Lubricate cables occasionally to prevent binding. Failure to do so may cause a malfunction, resulting in a serious or fatal accident. WARNING: Adjustment of the brake lever in too narrow a position may cause the lever lo hit the handlebar before full braking action is achieved.
THINGS TO CHECK BEFORE RIDING (Continued) 2. Make sure that the quick release levers are pushed fully to the CLOSE position (side of the lever with the inscription “CLOSE” must be facing away from the wheel). 6. Wheels should be checked regularly for spoke tightness, especially it ridden on rough roads. If the wheel does not remain ‘true’ this indicates that the spokes are loose. We recommend that spoke adjustments be performed by a professional bicycle mechanic.
WARNING (Continued) 7. Look for loose spokes on the wheels. Check tires for glass, thorns or any other sharp objects. 8. Make sure all wheels are property aligned. 9. Make sure handlebar stem bolts are tight and that the minimum insertion mark on the stem is not visible. 10. Keep the derailleurs in adjustment. Do not let the bike rest or fall on the derailleur. 11. Keep tires inflated to pressure indicated on the sidewall. however, certain extreme environments may cause oxidizing of surfaces.
and stem or any suspension related parts or components. Paint/ finish, components attached to the bicycle such as front forks, wheels, drive train, brakes, seat post, handlebar and stem or any suspension related parts or components are covered under the limited one (90) day warranty. This warranty is void if the bicycle was not purchased new from or not properly assembled by a Sun Bicycles dealer. J&B Importers, Inc. (“Sun Bicycles”), a Florida Corporation located at 11925 SW 128th St.
ADDITIONAL CONDITIONS (Continued) riding, jumping, aggressive riding, riding on severe terrain, riding in severe climates, riding with heavy loads, commercial activities, or any similar activities; such uses may damage the bicycle, and can cause serious injury to the rider, and in all cases will void this warranty. Bicycles LIMITED WARRANTY. Sun Bicycles DOES NOT AUTHORIZE OR ALLOW ANYONE, INCLUDING ITS DEALERS, TO EXTEND ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, FOR Sun Bicycles.
Distributed by: 11925 SW 128th Street Miami, Fl USA 33186-1859 305-238-1866 Not responsible for typographical errors. Specifications subject to change without notice.
