FAQ

TIRE ??s:

1.  HOW ARE YOUR TIRES MEASURED? REAL WORLD WIDTH?

WITH CALIPERS - WE TRY OUR HARDEST TO GIVE YOU AN ACCURATE IDEA OF WHAT OUR TIRES WILL MEASURE OUT AT SO YOU CAN BE SURE THEY FIT BEFORE PURCHASING. THAT BEING SAID, THERE ARE SEVERAL FACTORS THAT COME INTO PLAY, THUS THE ?? ON OUR CASING LABELS.  RIM INNER DIMENSION, AIR PRESSURE, AND CASING TYPE ALL PLAY A ROLE.
 IN ADDITION, THE INDUSTRY STANDARD AS WELL AS OUR FACTORY’S STANDARDS ALLOW 2MM TOLERANCE ON EITHER SIDE OF THE NOTED SIZE DUE TO UNCONTROLLABLE VARIABLES- (BELIEVE IT OR NOT, PARTS OF THE MANUFACTURING PROCESS ARE ACTUALLY VERY MUCH STILL DONE BY HAND) SO IT’S POSSIBLE THE TIRE COULD START AT 49MM OR 50MM AND STRETCH, THOUGH WE’VE YET TO SEE A NEW TIRE MEASURE THAT WIDE WHEN MOUNTED ON AN APPROPRIATE RIM.
ANOTHER THING TO CONSIDER IS OUR RACE CASING GENERALLY RUNS A LITTLE WIDER THAN THE JFF WHICH IS A LITTLE WIDER THAN OUR ROBUSTO- SINCE THE CASING OF OUR RACE IS SO LIGHT AND FLEXIBLE IT USUALLY EXPANDS A TINY BIT MORE DURING VULCANIZATION YIELDING A SLIGHTLY WIDER TIRE.  WE’RE TALKING .5 - 1MM USUALLY.  SO VERY SMALL, AND AGAIN IT CAN VARY SINCE THEY’RE HANDMADE.  IF WIDTH IS A CONCERN AND MILLIMETERS MATTER, GO WITH OUR ROBUSTO SINCE IT IS THE NARROWEST OPTION...

2.  WHAT PRESSURE SHOULD I RUN, AND HOW DID YOU BASE THE GENERAL PRESSURE RANGES IN THE PRODUCT DESCRIPTIONS?

 GOOD QUESTION, OUR ASSUMPTIONS ARE MAINLY BASED ON OUR PERSONAL RIDING EXPERIENCE.  THE 25PSI IS SUGGESTED FOR THE LOWER END FOR OUR 650B TIRES WHILE 30PSI IS SUGGESTED AS THE LOWER END FOR 700C.  WE’RE BOTH AROUND 175LBS, ON MODERN WIDE RIMS, AND WE’VE RIDDEN FOR A LONG TIME AND USUALLY MAKE GOOD LINE CHOICES IN THE ROUGH STUFF.
OUR MAIN THOUGHT WITH PUTTING OUT PRESSURE RECOMMENDATIONS WAS TO DISCOURAGE PEOPLE FROM AIRING THEM TO THE STATED MAX PRESSURE THAT IS ON THE SIDEWALL WHICH IS, BELIEVE IT OR NOT, WHAT EVERYONE HAS BEEN TRAINED TO DO OVER THE YEARS BY THE BIKE INDUSTRY.  THERE ARE A LOT OF PEOPLE WHO ARE JUST GETTING INTO HIGHER VOLUME TIRES AND DON’T UNDERSTAND THE MAIN BENEFIT WHICH IS THE ABILITY TO RUN LOWER PRESSURE FOR IMPROVED GRIP, COMFORT AND SPEED.  UNFORTUNATELY, A LARGE VOLUME TIRE AIRED TOO HIGH IS VERY UNFUN SINCE THEY BOUNCE OFF EVERYTHING AND YOU’RE MORE PRONE TO FLATS FROM SIDEWALL SLASHES SINCE THE TIRE TREAD RESISTS DEFORMING OVER THE SHARP STUFF. WE’VE FOUND CHOOSING PRESSURE HAS A LOT TO DO WITH RIDER WEIGHT, RIM WIDTH, TERRAIN ETC, BUT PERSONAL HANDLING PREFERENCES, RIDING STYLE, AND EXPERIENCE ARE MASSIVE FACTORS AS WELL- WE’VE TRIED TO ENCOURAGE PEOPLE TO EXPERIMENT AND FIND WHAT WORKS BEST FOR THEM.  A LOT DEPENDS ON HOW YOU LIKE TO RIDE- ARE YOU TYPICALLY LATE ON THE BRAKES INTO CORNERS AND FIND YOURSELF IN TROUBLE, DO YOU PICK AGGRESSIVE LINE CHOICES WHEN IT GETS SUPER ROUGH, OR DO ANTICIPATE EARLY, CHOOSE SPEED CAREFULLY AND PICK DELIBERATE, OBSTACLE-FREE LINES…. IT ALSO DEPENDS ON WHAT YOU LIKE TO RIDE- ARE YOU RIDING SMOOTH, PACKED GRAVEL WITH FEW LOOSE TURNS OR ARE YOU TYPICALLY RIDING SINGLETRACK OR VERY RUGGED 2TRACK?  
SO MANY FACTORS…I’VE KEPT LITTLE NOTES ON MY WORKBENCH OVER THE YEARS WITH PRESSURE I START OUT AT AND CONDITIONS, AND THEN WHAT I END UP WITH WHEN I FINISH A RIDE ALONG WITH WHAT TYPE OF TERRAIN I RODE. THAT WAY I HAVE A LITTLE REFERENCE IF I SPACE OUT ON WHAT TO AIR UP TO ON THE NEXT RIDE.  THE MAIN THING TO AVOID IS THE TIRE GETTING TOO SQUISHY THROUGH CORNERS WHICH IS USUALLY A PRECURSOR TO FOLDOVER- IF YOU NOTICE THE SQUISH JUST ADD A FEW PSI BACK IN.  USUALLY FOR ON-THE-FLY PRESSURE DROPS I BALLPARK IT BY DOING ONE QUICK TAP ON THE VALVE = 1PSI.  WHEN YOU GET HOME MAKE A NOTE OF WHAT FELT GOOD.
 
 

SHIPPING

WE WILL PROCESS YOUR ONLINE ORDER WITHIN 24-36 HOURS GIVEN ALL ITEMS ARE IN STOCK. WE STRIVE TO KEEP OUR WEBSITE’S INVENTORY UPDATED AT ALL TIMES, BUT ITEM AVAILABILITY IS NOT GUARANTEED. IF AN ITEM IS SOLD OUT, YOU WILL BE NOTIFIED VIA EMAIL OR TELEPHONE. ORDERS WITH SOLD OUT ITEMS WILL BE REFUNDED, OR THE AMOUNT OF THAT ITEM WILL BE CREDITED BACK TO THE ORIGINAL CARD, AND THE ORDER WILL BE SENT PARTIALLY FULFILLED, PER THE CUSTOMER’S WISHES. ORDERS ARE SHIPPED VIA USPS, UPS OR DHL EXPRESS. PLEASE BE SURE YOUR DELIVERY ADDRESS IS SECURE - ULTRADYNAMICO IS NOT RESPONSIBLE FOR PACKAGES AFTER THEY ARE DELIVERED TO THE REQUESTED ADDRESS. EXPEDITED ORDERS RECEIVED AFTER 1PM PST WILL SHIP THE FOLLOWING DAY. OVERNIGHT ORDERS RECEIVED BEFORE 1PM FRIDAY WILL NOT ARRIVE UNTIL MONDAY.

 

RETURNS 

 

INTERNATIONAL SHIPPING

ULTRADYNAMICO SHIPS INTERNATIONALLY TO CANADA, EUROPE, AUSTRALIA, NEW ZEALAND, JAPAN AND VARIOUS OTHER FARAWAY PLACES.  IF YOUR INTERNATIONAL ADDRESS ISN’T ACCEPTED AT CHECKOUT IT’S PROBABLY BECAUSE WE DON’T TYPICALLY SHIP TO YOUR LOCATION BECAUSE IT’S TOO EXPENSIVE / RISKY, BUT IF YOU’D LIKE TO RECEIVE A SHIPPING QUOTE ANYWAY, PLEASE EMAIL HELLO@ULTRADYNAMICO.COM  WITH THE ITEMS AND QUANTITIES YOU’D LIKE TO PURCHASE AS WELL AS YOUR EXACT ADDRESS AND PHONE NUMBER.  
YOU WILL THEN RECEIVE A SHIPPING QUOTE AND A PAYMENT OPTION.  ONCE PAYMENT HAS BEEN MADE AND YOUR PACKAGE SHIPS YOU WILL RECEIVE AN EMAIL CONFIRMATION WHICH INCLUDES ALL PERTINENT TRACKING INFORMATION.  
PLEASE BE AWARE ALL INTERNATIONAL ORDERS OF THIS NATURE ARE SHIPPED VIA USPS INTERNATIONAL PRIORITY MAIL OR DHL EXPRESS AND GENERALLY TAKE 6-12 BUSINESS DAYS, POSSIBLY LONGER DUE TO THE PANDEMIC.  WE HIGHLY RECOMMEND DHL EXPRESS AS THEY HAVE BEEN THE MOST RELIABLE IN THE LAST 2 YEARS.
ALL INTERNATIONAL SALES ARE FINAL- RETURNS ARE NOT ACCEPTED ON INTERNATIONAL SALES.  
ULTRADYNAMICO IS NOT RESPONSIBLE FOR IMPORT FEES, TAXES, VATS OR ANY OTHER CUSTOMS FEES SHOULD YOUR PACKAGE BE PROCESSED BY CUSTOMS. FEES CAN RANGE FROM 20% TO 40% OF THE ORDER TOTAL.  ALSO, BE AWARE IF CUSTOMS DOES PROCESS YOUR SHIPMENT YOU MAY EXPERIENCE DELAYS.  IF PACKAGES ARE REFUSED DUE TO UNEXPECTED CUSTOMS CHARGES YOU WILL BE CHARGED FOR OUTGOING AND INCOMING SHIPPING CHARGES AS WELL AS THE REFUSAL CHARGES.  UNFORTUNATELY WE HAVE NO CONTROL OVER THESE CHARGES OR DELAYS AND CANNOT PREDICT WHAT THEY MIGHT BE, AND THEREFORE SUGGEST YOU CONTACT YOUR LOCAL CUSTOMS OFFICE FOR ADDITIONAL INFORMATION.  THANKS FOR YOUR UNDERSTANDING.