General Purpose Platform (GPP)

$225.00

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Continental US Flat Rate Shipping: $20

Weight Capacity of 75 lbs. Note: Compatible with current General and XL Hitches only. Short hitches are not supported. Please select your hitch type at checkout.

The General Purpose Platform (GPP) is a steel, hitch-mounted base that supports accessories like the GPP Tray and ALTA Bucket, transferring weight directly back into your vehicle’s receiver for a stable and streamlined setup. Finished in Mini Tex black powder coat for durability, the GPP offers a solid foundation for year-round modular add-ons. Weight Capacity of 75 lbs.

INCLUDES:
• General Purpose Platform (GPP) main platform
• Two mounting brackets and required hardware

ACCESSORIZE WITH:
GPP Tray – Provides an 11 x 23 in. steel platform with tie-down points for securing gear. Use your own straps or bolt on Retractable Straps for a permanent setup. Great for a medium cooler, small generator, or battery to charge E bikes—freeing up interior cargo space.

ALTA Bucket – Mounts directly to the GPP using aligned floor hole patterns. Check out the Winter Sports Vertical Mount with Bucket for winter sports use of the ALTA Bucket.

Categories: Stands & Mounts

The General Purpose Platform (GPP) is a hitch-mounted base designed to support the GPP Tray and ALTA Bucket by transferring weight directly back into your vehicle’s receiver. Built from steel construction and finished with Mini Tex black powder coat, the GPP provides long-term durability as a solid foundation to accessorize.

  • Note: The GPP is compatible with all current General Hitch and XL Hitch and has a weight capacity of 75lbs

The GPP replaces the existing internal stabilizer and you must have the latest generation General or XL Hitch with the internals bored out from front to back, as it plugs in through the front hole of the hitch. Short hitches and ALTA Swingers are not currently compatible with the GPP. Please specify in the dropdown menu below your hitch size (General or XL) on which you plan to install the GPP, as there is a specific GPP adapter for each specified hitch.

INCLUDES:
• General Purpose Platform (GPP) main platform
• Two Mounting Brackets and required hardware

The GPP can also be paired with ALTA accessories for year-round for expanded utility and modular setup flexibility.

ACCESSORIZE WITH:

GPP Tray – When selected as an add-on, the GPP Tray provides a steel platform with 11 x 23 inches of usable flat surface and dedicated tie-down points on all four sides for securing gear. Use your own tie-down straps or bolt on Retractable Straps for a clean, permanent setup that locks down just about anything. It’s an ideal ride for a medium-size cooler, small generator, or battery system for charging E-bikes—keeping bulky gear outside and freeing up interior cargo space.

ALTA Bucket – Hole patterns in the ALTA Bucket floor align directly with the General Purpose Platform (GPP) for seamless, secure mounting. For year-round use, pair the GPP with our Winter Sports Vertical Mount with Bucket—mountable on either side of the rack—to create a versatile setup that transitions easily between seasons.

Check out our You Tube channel for videos.

 

GPP Options

GPP only, GPP + tray combo
Gpp general or xl

General Hitch, XL Hitch

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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