ALTA SIX Extender

17 customer reviews

$179.00

Shipping calculated at checkout

Continental US Flat Rate Shipping: $20

The ALTA SIX Extender is not your typical extender. Three positions allow for 9 to 11-inches of extension from your vehicle’s receiver, so it’s perfect for Sprinters, Econolines, NVs, and Dodges, Transits, and all double-door vans to get full door opening along with the Kickout Adapter. Also great for truck campers that go over the tailgate. The ALTA SIX Extender can be rotated to lower the rack. Retractable Straps work great with the Extender, or you can use your own ratcheting straps.

Powder coated for durability and machined for precision, we use 1/4 steel tubing to create a solid system for extending ALTA bike racks. The ALTA SIX Extender features a double 5/8 bolt interface for a solid connection and includes an Internal Stabilizer for interfacing to the vehicle’s receiver. Use your ALTA Rack’s external stabilizer to connect the ALTA SIX Extender to your vehicle and double bolt you ALTA Rack into the ALTA SIX Extender.

  • Compatibility: Short Hitch, General Hitch, XL Hitch, ARCYLON

Please note:

  • When loaded with bikes, a tie-down system (Retractable Straps, tie-downs, etc.) must be engaged for added stability due to the extension and leverage provided by the ALTA Six Extender
  • The ALTA SIX Extender does NOT include an External Stabilizer. An External Stabilizer is already included with every purchase of an ALTA Rack, which should be used to stabilize the ALTA SIX Extender on your vehicle’s receiver. If you would like an additional External Stabilizer (you only need one in most cases) or are only purchasing the ALTA SIX Extender, please see our Stabilizer System page HERE.
  • May not be compatible with all Dodge Promasters (see FAQ page)
  • The ALTA SIX Extender is NOT made for towing
  • NOT recommended for use with fifth wheels or trailers
  • NOT tested with other brands bike racks

  1. Tyler

    Very solid and well built. Helps from swaying and makes it harder to steal.

  2. Anonymous

    The extender allowed me to use the rack with my Ram truck. Now I can lower the tailgate when the rack is upright. Great product!

  3. Bryan F.

    Solid addition to the rack but only had some ugly silver splatter painted one. Looking for alternative swing mount to buy or build.

  4. William G.

    Super happy with our alta rack and the service we’ve received from Ali. Highly recommend this rack for anyone looking for the sturdiest, easiest-to-use taxi on the market!

  5. Loren Roundy

    The extender for our Alta Six is the complete solution. Full rear door access for our 2019 Sprinter van. The build is durable, matching the sexy look of the entire Alta Six!

  6. Nathan Woolever

    Super fast shipping and item is very solidly made. Best hitch rack extender/riser I’ve ever used!

  7. Peter B.

    Used this on a sprinter van so that I can have full access to the back when the rack is dropped down. Worked like a charm!

  8. Justin

    Heavy duty!

  9. BEN B.

    Very solid and stable. Creates the prefect amount of clearance… a must for NV owners.

  10. John Logar

    alot of questions out here in WV about rack. maybe getting you some sales. need beer holder attachment for bottom bar

  11. brian smith

    Only reason I didn’t give 5 stars is because I can’t open both doors on my 2019 low roof Ford transit . Right door opens with an inch or less of clearance but left door does not open . Website states that tow hitch should be flush with bumper but that is not possible on Ford transit unless you weld tow hitch on . The bolt on hitch does not sit flush and is recessed which is causing the issue of door not fully opening .

  12. Bryan Tremayne

    Easy to work with and great product!

  13. Ian J.

    Worked just as intended with the Alta 5 to allow the tailgate on my 2020 Ram to lower all the way with the rack in place!

  14. Stephane Guillemette (verified owner)

    the fit is perfect! no waggle…

  15. Michael S. (verified owner)

    Exactly what I needed for my 2022 Ford F-150 to clear my fully opened tailgate, and camper shell swing up door. Cheers.

  16. David Tripp (verified owner)

    Not as advertised. It does not come with the external hitch stabilizer to interface with vehicle receiver. The pics and description include this part but it is not included with the extension. Per Ali, I could buy one from him or get one from Amazon. I will not be spending any more money with Ali.

  17. Richie (verified owner)

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Bike Rack ModelPriceBike CapacityWeight Capacity Total Load¹Weight Capacity Per Bike²Total Rack Weight w/ Baskets³Top Bar Length (in)
Alta SOLO$8951 bike90lbs*90lbs*~33.5lbsN/A
Alta 3 Pack (Lefty & Righty)$9493 bikes250lbsREG 40lbs/HD 50lbs~56lbs30.5"
Alta GPR 4 Pack$11694 bikes250lbsREG 40lbs/HD 50lbs~73lbs60"
Alta GPR 5 Pack$12695 bikes250lbsREG 40lbs/HD 50lbs~77lbs60"
Alta GPR 6 Pack$13696 bikes250lbsREG 40lbs/HD 50lbs~80.5lbs60"
Alta Superior E-Dub$12852 bikes300lbs70lbs~62.5lbs28"
Alta Superior E-Quattro$15504 bikes300lbsREG 50lbs/HD 70lbs~74lbs41.5"
Alta Superior 45ER 4 Pack$15304 bikes300lbsREG 50lbs/HD 70lbs~85.5lbs60"
Alta Superior 45ER 5 Pack$16305 bikes300lbsREG 50lbs/HD 70lbs~89lbs60"
Alta Superior 76ER 6 Pack$17306 bikes350lbsREG 50lbs/HD 70lbs~95lbs66"
Alta Superior 76ER 7 Pack$18307 bikes350lbsREG 50lbs/HD 70lbs~98.5lbs66"
Alta Superior Ocho 7 Pack$19997 bikes350lbsREG 50lbs/HD 70lbs~106.5lbs74"
Alta Superior OCHO 8 Pack$20998 bikes350lbsREG 50lbs/HD 70lbs~110lbs74"

¹Max weight limit (combined weight of bikes/gear fully loaded on) for each bike rack from the vehicle hitch. Max weight limit does not include the weight of the rack itself

²Total weight limit for each, individual bike put on the rack per basket, and is determined by basket type (non-HD or HD) while using E-Bike Straps. These variations will be labeled as REG for using non-HD Baskets with E-Bike Straps, and HD for using HD Baskets with E-bike straps

³The individual weight of each bike rack when empty (no bikes or accessories), which includes the weight of the rack’s max basket capacity (see respective bike rack capacity) using General Baskets. Non-Superior rack total weight includes General Hitch and Superior rack total weight includes XL Hitch

*The Alta SOLO uses specially made baskets that are custom engineered for this rack, and is weight rated for a single bike or load up to 90 pounds with these same baskets

¹Max weight limit (combined weight of bikes/gear fully loaded on) for each bike rack from the vehicle hitch. Max weight limit does not include the weight of the rack itself

²Total weight limit for each, individual bike put on the rack per basket, and is determined by basket type (non-HD or HD) while using E-Bike Straps. These variations will be labeled as REG for using non-HD Baskets with E-Bike Straps, and HD for using HD Baskets with E-bike straps

³The individual weight of each bike rack when empty (no bikes or accessories), which includes the weight of the rack’s max basket capacity (see respective bike rack capacity) using General Baskets. Non-Superior rack total weight includes General Hitch and Superior rack total weight includes XL Hitch

*The Alta SOLO uses specially made baskets that are custom engineered for this rack, and is weight rated for a single bike or load up to 90 pounds with these same baskets

Baskets (outside of being purchased with an ALTA Rack), can be requested on our Basket Request page.

¹Wheel size can be adjusted between specified wheel size ranges with Wheel Chokes (not included with baskets). Wheel Choke recommendations for regular baskets (General, Mid-Fat, Fat) are as follows:

    • 24-inch and 26-inch wheels (with Wheel Chokes), 27.5-inch and 29-inch wheels (without Wheel Chokes). GROM Baskets generally do not need Wheel Chokes, but may be used in some cases. Contact us if you have further questions regarding this

*HD Baskets have a higher individual weight capacity than non-HD Baskets, and can carry up to 70lbs with E-Bike Straps on Superior Racks, and 60lbs with E-Bike Straps on non-Superior Racks

Brand Comparisons

BrandBasket SwapsHeight Adjustable Top BarBasket CapacityRack CapacityAngle of EntryWarrantyColor OptionsE-Bike ApprovedAdjustable Basket LocationCountry of OriginSwing Arm Compatible
ALTA RACKS GPR 6YESYES50lbs*250lbsExcellent Ground ClearanceLIFETIMEYESYESYESUSAYES
ALTA RACKS 45ERYESYES70lbs*300lbsExcellent Ground Clearance LIFETIMEYESYESYESUSAYES
Thule Revert 6NONO55lbs250lbsMedium Ground Clearance LIFETIMENOYESNOCHINANO
1UP USA Recon 6NOYES45lbs270lbsReduced Ground ClearanceLIFETIMENONot Explicitly StatedNOUSANO
VelociRAX 6 MAXNONO100lbs300lbsReduced Ground Clearance 2 YEARNOYESNOCHINANO

‘* Based on average shipping cost calculated through VelociRAX website 

* On an HD Basket w/ E-Bike Straps 

Bike Straps – Each Rack comes with 2 custom straps per included basket, one to secure the front wheel to the basket, and one to secure the back wheel to the bottom bar

OSP (Outer Safety Pin) – The OSP adds an extra measure of safety to secure the system in place, and allows for the rack to tilt away from the hitch when removed for easy loading and unloading

Tensioner – The adjustable tensioner bolt allows for more or less space for the rack to tilt back. Higher tension equals slower tilt, and lower tension equals faster tilt. We recommend adjusting toward the tighter side for heavier loads

Hitch – Each Alta Rack comes with a hitch to attach to your vehicle. Non-Superior Racks come with a General Hitch and Superior Racks come with an XL Hitch by default. However, you can switch these hitches out depending on your clearance needs

Baskets – Every Alta Rack includes a set number of baskets that cradle the front wheel of your bikes. They can be switched out for different sizes and moved around for more or less space by loosening or tightening the basket knobs below

E-Bike Straps – E-Bike straps are not included in most racks, but are highly recommended for all bike types (especially heavier E-bikes) for a higher weight capacity per basket. They strap on to your bike pedals to put less weight in the basket and more on the top bar

Retractable Straps – Two Retractable Straps come with every Superior Rack for added stability and security for your bikes. We recommend tying down the straps directly to your vehicle (not to the hitch) placed high or low (top or bottom of your vehicle), and angled wide

Low Bar – The Low Bar is an integral part of each rack system, providing limitless positioning for rear bike wheels. The straps on the low bar allow for any wheel size to fit snugly during transport

Gussets – Unique to the Alta Superior Rack, the Gussets extend from the bottom of the vertical post to the ends of the top bar, providing greater support, rigidity, and weight capacity

Gear Hanger – This accessory lets you hang helmets, water bottles, camel backs, and other gear directly on the rack. It is purchased separately and is a great addition for storage on your Alta Rack system

Brake Engagers – Two brake engagers are included with each basket and are generally stored on the basket knobs. These attach directly to your bike brakes to engage them and prevent your bike wheels from moving, creating less movement during transport

Main Beam – The main beam is the core of each Alta Rack. Even after switching out top and bottom bars, baskets, or hitches, it is the part that stays with you to the very end. Comes in awesome colors, too

Top Bar – The long bar that extends from the main beam at the top. It carries all your baskets and is a big player in how we customize our racks. The simple, yet robust design allows for limitless modularity with baskets, accessories, and mounts