Retrospec Harper

299⁹⁹

Quantity

Frameset

FrameHand Built high-tensille Steel, top tube internal cable routing, "UrbanComfort" design, forged horizontal rear dropouts with integrated chain tensioners. Bar-spin clearance with no toe overlap. TT: 28mmOD, DT:46mmODprofile (ovalized). Internal cable routing, 2 sets bottle braze-ons, rear rack braze-ons.
ForkUnicrown, Threaded, 28.6mm, 2x fender-eyelet, rack braze-ons

Wheelset

Rimsretrospec aluminum double-wall 32H, precision machined brake tracks
Hubsretrospec low-flange aluminum alloy, loose-ball bearings, 32H, rear flip-flop, bolt-on: 16T FW/16T Fixed cog.
Spokes14G UCP
Tiresretrospec 700 x 32C all-season, S/V valves

Recommended Weight Limit250 LBS

Drivetrain

CrankHarper Forged Aluminum Alloy 170mm x 46T x1/8"
ChainKMC Z-series 1/8
Chain Ring(s)44T steel
BBSealed Cartridge
Freewheel/Cog16T x 1/8" FW + 16T Fixed Cog

Components

Headset1 1/8" (28.6mm) steel, Threaded, Semi-Integrated
BrakesAluminum alloy dual-pivot side-pull calipers & aluminum brake levers. 47-57mm reach.
HandlebarsAluminum Alloy 620mm Wide x 35mm Rise, 25.4
Gripsretrospec UrbanComfort Kraton 125mm length
StemQuill-type aluminum 80mm extension, -17⁰ rise, 25.4 handlebar clamp, 22.2 quill
Saddleretrospec Sport Comfort (SO/ST anatomically specific)
SeatpostAluminum Alloy 25.4 x 300mm with Micro Adjust head
Seatpost ClampAluminum alloy 28.6mm
PedalsLow-Profile Platform, Reinforced Nylon resin, 9/16"

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{"id":8926753915118,"title":"Free Agent Ratio 24 - 2025","handle":"free-agent-ratio-24-2025","description":"\u003cp\u003eFrame: Full CrMo, Mid BB, Integrated Headtube \u0026amp; Integrated Seat Clamp\u003cbr\u003eFork: Free Agent Full CrMo Tapered Leg\u003cbr\u003eHeadset: Sealed Bearing Integrated, Threadless, 1-1\/8\", Campy Style\u003cbr\u003eHandlebar: Free Agent CrMo Cruiser, 146x710\u003cbr\u003eStem: Free Agent Alloy Top Load, 50mm\u003cbr\u003eGrips: Free Agent Kraton\u003cbr\u003eCrankset: Free Agent Mid 3-pc Hollow CrMo, 175mm, Free\u003cbr\u003eAgent 21T Chainwheel\u003cbr\u003eBB: Mid Cartridge Bearings, 8 Spline, Hollow Axle\u003cbr\u003eChain: KMC S1\u003cbr\u003ePedals: Free Agent Low Profle Nylon Platform w\/Smooth Polymer Bearing\u003cbr\u003eRims: F: Alloy, R: Alloy Double Wall, 24\", 36x36H\u003cbr\u003eHubset: Free Agent Alloy FT 3\/8\", Alloy RR w\/9T Driver, 14mm Axle\u003cbr\u003eSpokes: 14G Black, 36x36\u003cbr\u003eTires: 24x2.1\" FT \u0026amp; RR\u003cbr\u003eFreewheel \/ Cassette: 9T Driver\u003cbr\u003eBrake Levers: Tektro Alloy 2F w\/Hinged Bracket, XL-510\u003cbr\u003eBrakes: (R) Alloy U-Brake\u003cbr\u003eSaddle: Free Agent Padded Jump w\/Integrated Post\u003cbr\u003eSeatpost: Free Agent Alloy 25.4mm Integrated\u003cbr\u003eOther: Features Long Linear Cable, Removable HT Cable Guide\u003c\/p\u003e","published_at":"2025-08-12T13:41:51-07:00","created_at":"2025-08-12T11:44:32-07:00","vendor":"KHS","type":"Bikes - BMX","tags":["bike","Brand_Free Agent","Color_Black","deals","Type_Bmx"],"price":55999,"price_min":55999,"price_max":55999,"available":true,"price_varies":false,"compare_at_price":60999,"compare_at_price_min":60999,"compare_at_price_max":60999,"compare_at_price_varies":false,"variants":[{"id":46880511787246,"title":"Matte Black \/ 24 in","option1":"Matte Black","option2":"24 in","option3":null,"sku":"210000016245","requires_shipping":true,"taxable":true,"featured_image":{"id":44754872303854,"product_id":8926753915118,"position":1,"created_at":"2025-08-12T11:44:31-07:00","updated_at":"2025-08-12T11:44:33-07:00","alt":null,"width":400,"height":400,"src":"\/\/www.plentyofbikes.com\/cdn\/shop\/files\/bglbttgl9ekijhrqudll.jpg?v=1755024273","variant_ids":[46880511787246]},"available":true,"name":"Free Agent Ratio 24 - 2025 - Matte Black \/ 24 in","public_title":"Matte Black \/ 24 in","options":["Matte Black","24 in"],"price":55999,"weight":0,"compare_at_price":60999,"inventory_quantity":2,"inventory_management":"shopify","inventory_policy":"deny","barcode":"756928946806","featured_media":{"alt":null,"id":36614808142062,"position":1,"preview_image":{"aspect_ratio":1.0,"height":400,"width":400,"src":"\/\/www.plentyofbikes.com\/cdn\/shop\/files\/bglbttgl9ekijhrqudll.jpg?v=1755024273"}},"requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/www.plentyofbikes.com\/cdn\/shop\/files\/bglbttgl9ekijhrqudll.jpg?v=1755024273"],"featured_image":"\/\/www.plentyofbikes.com\/cdn\/shop\/files\/bglbttgl9ekijhrqudll.jpg?v=1755024273","options":["Color","Size"],"media":[{"alt":null,"id":36614808142062,"position":1,"preview_image":{"aspect_ratio":1.0,"height":400,"width":400,"src":"\/\/www.plentyofbikes.com\/cdn\/shop\/files\/bglbttgl9ekijhrqudll.jpg?v=1755024273"},"aspect_ratio":1.0,"height":400,"media_type":"image","src":"\/\/www.plentyofbikes.com\/cdn\/shop\/files\/bglbttgl9ekijhrqudll.jpg?v=1755024273","width":400}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eFrame: Full CrMo, Mid BB, Integrated Headtube \u0026amp; Integrated Seat Clamp\u003cbr\u003eFork: Free Agent Full CrMo Tapered Leg\u003cbr\u003eHeadset: Sealed Bearing Integrated, Threadless, 1-1\/8\", Campy Style\u003cbr\u003eHandlebar: Free Agent CrMo Cruiser, 146x710\u003cbr\u003eStem: Free Agent Alloy Top Load, 50mm\u003cbr\u003eGrips: Free Agent Kraton\u003cbr\u003eCrankset: Free Agent Mid 3-pc Hollow CrMo, 175mm, Free\u003cbr\u003eAgent 21T Chainwheel\u003cbr\u003eBB: Mid Cartridge Bearings, 8 Spline, Hollow Axle\u003cbr\u003eChain: KMC S1\u003cbr\u003ePedals: Free Agent Low Profle Nylon Platform w\/Smooth Polymer Bearing\u003cbr\u003eRims: F: Alloy, R: Alloy Double Wall, 24\", 36x36H\u003cbr\u003eHubset: Free Agent Alloy FT 3\/8\", Alloy RR w\/9T Driver, 14mm Axle\u003cbr\u003eSpokes: 14G Black, 36x36\u003cbr\u003eTires: 24x2.1\" FT \u0026amp; RR\u003cbr\u003eFreewheel \/ Cassette: 9T Driver\u003cbr\u003eBrake Levers: Tektro Alloy 2F w\/Hinged Bracket, XL-510\u003cbr\u003eBrakes: (R) Alloy U-Brake\u003cbr\u003eSaddle: Free Agent Padded Jump w\/Integrated Post\u003cbr\u003eSeatpost: Free Agent Alloy 25.4mm Integrated\u003cbr\u003eOther: Features Long Linear Cable, Removable HT Cable Guide\u003c\/p\u003e"}

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{"id":8914242863342,"title":"Retrospec Koda 20 Coaster (Legacy)","handle":"retrospec-koda-20-coaster-legacy","description":"\u003cp\u003eGrows With Them\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis bike’s wide range of adjustable seat height, extending from just 21.5” up to 27.5”, can accommodate small riders and their growth spurts, so little cyclists can keep riding comfortably as their bike grows with them.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOptimized Pedaling\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePedaling on this bike is intuitive and efficient, with a gain ratio of 4.0. Every pedal stroke adds speed (“gain”) with just the right amount of energy (“ratio”) needed to propel them, resulting in easier starts \u0026amp; better balance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePerfect Fit\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA better fitting bike leads to faster learning, heightened confidence, \u0026amp; more fun. At around 25 lbs, this bike is lightweight and easier for kids to maneuver. Its easy-mount frame \u0026amp; ergonomic saddle were tailor-made just for them.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWide, Cushioning Tires\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGrooved tires reliably grip and can easily maneuver over different surfaces, making their ride smooth and stable no matter the terrain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCoaster Brake\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUncomplicated and practically a rite of passage as a kid, the coaster brake allows them to simply pedal backwards to safely ease to a stop.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSticker Pack Included\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis kids' bike includes a sticker pack that your child can use to decorate their gear and express their style.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFrameset\u003c\/p\u003e\n\u003cul data-gtm-vis-has-fired10840058_475=\"1\"\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eFrame: High-tensile steel hand-built, Low-Profile step-over frame design and decals protected by clear-coat\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eHeadtube: 90mm frame headtube\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eFork: Unicrown high-tensile steel, 1\" threaded\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWheelset\u003c\/p\u003e\n\u003cul data-gtm-vis-has-fired10840058_475=\"1\"\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eRims: Steel 16\", 14g x 36H - painted\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eHubs: 3\/8\" (10mm) x 14g x 36H steel ball-bearing\/nutted, Coaster Brake rear 16T cog\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eSpokes: 14g UCP\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eTires: Retrospec 20 x 1.75, S\/V valves - Air-Filled, 40psi\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAccessories\u003c\/p\u003e\n\u003cul data-gtm-vis-has-fired10840058_475=\"1\"\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eKickstand: Steel, center-mount\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eRecommended Weight Limit: 150 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDrivetrain\u003c\/p\u003e\n\u003cul data-gtm-vis-has-fired10840058_475=\"1\"\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eCrank: Steel 1-piece 5\" (127mm) x 32T, for 1\/2\" pedals\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eChain: KMC 1\/2 x 1\/8\"\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eBB: OPC\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eFreewheel\/Cog: 16T\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eGain Ratio: 4.00\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eComponents\u003c\/p\u003e\n\u003cul data-gtm-vis-has-fired10840058_475=\"1\"\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eHeadset: Steel ball-bearing, 1\" threaded\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eBrakes: Coaster Brake Rear\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eHandlebars: Steel riser, 600mm width x 110mm rise, 20° sweep, 25.4 center, w\/crossbar \u0026amp; pad\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eGrips: Soft TPR (95mm (3.75\") length, large safety end - PVC\/BPA\/Lead\/Phthalate safe\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eStem: Quill, steel, 1\"\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eSaddle: Retrospec for Kids 16\"\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eSeatpost: Steel, 1\" (25.4mm)\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eSeatpost Clamp: Aluminum alloy QR (1 1\/8\"\/28.6mm OD)\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003ePedals: High-impact nylon, 1\/2\" w\/CPSC reflectors, black\u003c\/li\u003e\n\u003c\/ul\u003e","published_at":"2025-07-26T12:03:45-07:00","created_at":"2025-07-26T11:03:21-07:00","vendor":"Retrospec","type":"Bikes - Youth Bike","tags":["bike","Brand_Retrospec","Color_Black","Color_Teal","Type_Youth"],"price":16999,"price_min":16999,"price_max":16999,"available":true,"price_varies":false,"compare_at_price":16999,"compare_at_price_min":16999,"compare_at_price_max":16999,"compare_at_price_varies":false,"variants":[{"id":46798963966190,"title":"Teal \/ 16 in","option1":"Teal","option2":"16 in","option3":null,"sku":"210000016224","requires_shipping":true,"taxable":true,"featured_image":{"id":44603710800110,"product_id":8914242863342,"position":2,"created_at":"2025-07-26T11:03:16-07:00","updated_at":"2025-07-26T11:03:19-07:00","alt":null,"width":1800,"height":1800,"src":"\/\/www.plentyofbikes.com\/cdn\/shop\/files\/e0dw0k6vii1feeuwiiny.jpg?v=1753552999","variant_ids":[46798963966190]},"available":false,"name":"Retrospec Koda 20 Coaster (Legacy) - Teal \/ 16 in","public_title":"Teal \/ 16 in","options":["Teal","16 in"],"price":16999,"weight":15876,"compare_at_price":16999,"inventory_quantity":0,"inventory_management":"shopify","inventory_policy":"deny","barcode":"840216311800","featured_media":{"alt":null,"id":36518081691886,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1800,"width":1800,"src":"\/\/www.plentyofbikes.com\/cdn\/shop\/files\/e0dw0k6vii1feeuwiiny.jpg?v=1753552999"}},"requires_selling_plan":false,"selling_plan_allocations":[]},{"id":46798963998958,"title":"Matte Black \/ 16 in","option1":"Matte Black","option2":"16 in","option3":null,"sku":"210000016225","requires_shipping":true,"taxable":true,"featured_image":{"id":44603710931182,"product_id":8914242863342,"position":6,"created_at":"2025-07-26T11:03:18-07:00","updated_at":"2025-07-26T11:03:19-07:00","alt":null,"width":1800,"height":1800,"src":"\/\/www.plentyofbikes.com\/cdn\/shop\/files\/xuikjavuoiv1zlwdhhju.jpg?v=1753552999","variant_ids":[46798963998958]},"available":true,"name":"Retrospec Koda 20 Coaster (Legacy) - 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Every pedal stroke adds speed (“gain”) with just the right amount of energy (“ratio”) needed to propel them, resulting in easier starts \u0026amp; better balance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePerfect Fit\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA better fitting bike leads to faster learning, heightened confidence, \u0026amp; more fun. At around 25 lbs, this bike is lightweight and easier for kids to maneuver. Its easy-mount frame \u0026amp; ergonomic saddle were tailor-made just for them.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWide, Cushioning Tires\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGrooved tires reliably grip and can easily maneuver over different surfaces, making their ride smooth and stable no matter the terrain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCoaster Brake\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUncomplicated and practically a rite of passage as a kid, the coaster brake allows them to simply pedal backwards to safely ease to a stop.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSticker Pack Included\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis kids' bike includes a sticker pack that your child can use to decorate their gear and express their style.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFrameset\u003c\/p\u003e\n\u003cul data-gtm-vis-has-fired10840058_475=\"1\"\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eFrame: High-tensile steel hand-built, Low-Profile step-over frame design and decals protected by clear-coat\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eHeadtube: 90mm frame headtube\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eFork: Unicrown high-tensile steel, 1\" threaded\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWheelset\u003c\/p\u003e\n\u003cul data-gtm-vis-has-fired10840058_475=\"1\"\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eRims: Steel 16\", 14g x 36H - painted\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eHubs: 3\/8\" (10mm) x 14g x 36H steel ball-bearing\/nutted, Coaster Brake rear 16T cog\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eSpokes: 14g UCP\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eTires: Retrospec 20 x 1.75, S\/V valves - Air-Filled, 40psi\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAccessories\u003c\/p\u003e\n\u003cul data-gtm-vis-has-fired10840058_475=\"1\"\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eKickstand: Steel, center-mount\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eRecommended Weight Limit: 150 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDrivetrain\u003c\/p\u003e\n\u003cul data-gtm-vis-has-fired10840058_475=\"1\"\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eCrank: Steel 1-piece 5\" (127mm) x 32T, for 1\/2\" pedals\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eChain: KMC 1\/2 x 1\/8\"\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eBB: OPC\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eFreewheel\/Cog: 16T\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eGain Ratio: 4.00\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eComponents\u003c\/p\u003e\n\u003cul data-gtm-vis-has-fired10840058_475=\"1\"\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eHeadset: Steel ball-bearing, 1\" threaded\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eBrakes: Coaster Brake Rear\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eHandlebars: Steel riser, 600mm width x 110mm rise, 20° sweep, 25.4 center, w\/crossbar \u0026amp; pad\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eGrips: Soft TPR (95mm (3.75\") length, large safety end - PVC\/BPA\/Lead\/Phthalate safe\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eStem: Quill, steel, 1\"\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eSaddle: Retrospec for Kids 16\"\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eSeatpost: Steel, 1\" (25.4mm)\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003eSeatpost Clamp: Aluminum alloy QR (1 1\/8\"\/28.6mm OD)\u003c\/li\u003e\n\u003cli data-gtm-vis-has-fired10840058_475=\"1\"\u003ePedals: High-impact nylon, 1\/2\" w\/CPSC reflectors, black\u003c\/li\u003e\n\u003c\/ul\u003e"}