{"product_id":"road-bike-disc-wheels-pcw-peak-4540","title":"Princeton CarbonWorks Peak 4550 Evolution II","description":"\u003cp\u003e\u003cstrong\u003ePrinceton CarbonWorks Peak 4550 is the climber's aero wheelset — a 45 mm front \/ 50 mm rear hand-built carbon wheelset that climbs like a shallow wheel and holds speed like a deep one.\u003c\/strong\u003e Built around Sapim CX-Ray spokes and a choice of premium hubs, it's the wheelset for riders who want one set of wheels for everything from alpine climbs to fast group rides.\u003c\/p\u003e\n\n\u003ch3\u003eWho it's for\u003c\/h3\u003e\n\u003cp\u003eAll-round road riders, climbers, gran-fondo riders, and racers who want a single wheelset that handles a 1,500 m climb day and a flat 40 km\/h group ride with equal confidence — without the crosswind nervousness of a 60 mm wheel.\u003c\/p\u003e\n\n\u003ch3\u003eWhy riders choose them\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e45 mm front \/ 50 mm rear sinusoidal profile.\u003c\/strong\u003e Symmetric deep wheels are nervous in crosswinds and slow up climbs. The Peak's wavy rim profile and split depth give you climbing weight where it matters (front) and aero hold where it matters (rear) — so you ride one wheelset on every road.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrom 1,071 g (tubular) \/ 1,396 g (clincher).\u003c\/strong\u003e Most aero wheels punish climbing days. The Peak's low weight is genuinely close to a dedicated climbing wheel — you stop noticing it on the climbs and feel it on the flats.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSapim CX-Ray spokes + Secure Lock nipples.\u003c\/strong\u003e Standard bladed spokes loosen on rough roads and force re-trues every few months. CX-Ray with Sapim locking nipples stay true through full winters and big-day descents.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHand-built in the USA.\u003c\/strong\u003e Mass-produced wheelsets cut corners on lacing tension and rim QC. Princeton hand-builds and individually tensions every wheel — you feel it in the stiffness under hard efforts and the trueness after 10,000 km.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFive hub options to match your riding.\u003c\/strong\u003e Carbon Ti for light, Tune for fast engagement, White Industries for legendary durability, Industry Nine for explosive pickup, or Tactic for top-tier racing — pick the hub that suits how you actually ride, not how the brand wants to sell.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisc or rim brake, clincher or tubular.\u003c\/strong\u003e Older rim-brake race bikes deserve modern wheels too. Peak 4550 ships in disc and rim brake versions, in clincher\/tubeless or tubular — match your current bike without compromise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRim depth: 45 mm front · 50 mm rear (sinusoidal profile)\u003c\/li\u003e\n  \u003cli\u003eInternal rim width: 18.5 mm (hook-to-hook)\u003c\/li\u003e\n  \u003cli\u003eExternal rim width: 26 mm max\u003c\/li\u003e\n  \u003cli\u003eWeight: from 1,071 g (Tune hubs, rim, tubular) · 1,396 g (Tune hubs, disc, clincher)\u003c\/li\u003e\n  \u003cli\u003eSpokes: Sapim CX-Ray\u003c\/li\u003e\n  \u003cli\u003eNipples: Sapim Secure Lock alloy\u003c\/li\u003e\n  \u003cli\u003eHub options: Carbon Ti · Tune · White Industries · Industry Nine · Tactic TR01\u003c\/li\u003e\n  \u003cli\u003eBrake type: Disc (centre-lock) or rim brake\u003c\/li\u003e\n  \u003cli\u003eFreehub bodies: Shimano HG · Campagnolo · SRAM XDR (on request)\u003c\/li\u003e\n  \u003cli\u003eTyre bed: Clincher\/tubeless ready or tubular\u003c\/li\u003e\n  \u003cli\u003eConstruction: Hand-laid carbon, hand-built in USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility \u0026amp; intended use\u003c\/h3\u003e\n\u003cp\u003eDesigned for modern road bikes (disc or rim brake) running 25–30 mm tyres. Ideal for climbers, all-round road riders, racers, and gran-fondo riders who want one fast, light, stable wheelset for every road.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClimbing focus:\u003c\/strong\u003e 5\/5 — climbs like a dedicated shallow wheel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAero focus:\u003c\/strong\u003e 4\/5 — holds speed on flats and rolling terrain\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStability in crosswinds:\u003c\/strong\u003e 5\/5 — wavy profile + shallower depth\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStiffness under power:\u003c\/strong\u003e 5\/5 — hand-built, individually tensioned\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy buy from Approved Cycling\u003c\/h3\u003e\n\u003cp\u003eA €3,000 wheelset is a long-term decision. We'll talk through hub choice, freehub spacing, tyre compatibility, and rotor standard before you order — not after. Slovenian-based EU shipping, full warranty support, and direct contact at \u003ca href=\"mailto:hello@approvedcycling.com\"\u003ehello@approvedcycling.com\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Princeton CarbonWorks Peak 4550 wheelset (front + rear)\u003c\/li\u003e\n  \u003cli\u003eThru-axle end caps for selected hub standard (disc version)\u003c\/li\u003e\n  \u003cli\u003eTubeless valves (clincher\/tubeless version)\u003c\/li\u003e\n  \u003cli\u003ePrinceton CarbonWorks warranty documentation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"APPROVED CYCLING","offers":[{"title":"Carbon Ti \/ Shimano","offer_id":46774813950295,"sku":"PEAK.4550.DB.CARBONTI.BOB.SH.CL","price":3199.0,"currency_code":"EUR","in_stock":true},{"title":"Carbon Ti \/ Campagnolo","offer_id":46774815129943,"sku":"PEAK.4550.DB.CARBONTI.BOB.CA.CL","price":3199.0,"currency_code":"EUR","in_stock":true},{"title":"Carbon Ti \/ Sram","offer_id":46774815162711,"sku":"PEAK.4550.DB.CARBONTI.BOB.SR.CL","price":3199.0,"currency_code":"EUR","in_stock":true},{"title":"Tune \/ Shimano","offer_id":46774813983063,"sku":"PEAK.4550.DB.TUNE.BOB.SH.CL","price":3199.0,"currency_code":"EUR","in_stock":true},{"title":"Tune \/ Campagnolo","offer_id":46774815195479,"sku":"PEAK.4550.DB.TUNE.BOB.CA.CL","price":3199.0,"currency_code":"EUR","in_stock":true},{"title":"Tune \/ Sram","offer_id":46774815228247,"sku":"PEAK.4550.DB.TUNE.BOB.SR.CL","price":3199.0,"currency_code":"EUR","in_stock":true},{"title":"White Industries \/ Shimano","offer_id":46774814015831,"sku":"PEAK.4550.DB.WI.BOB.SH.CL","price":3199.0,"currency_code":"EUR","in_stock":true},{"title":"White Industries \/ Campagnolo","offer_id":46774815261015,"sku":"PEAK.4550.DB.WI.BOB.CA.CL","price":3199.0,"currency_code":"EUR","in_stock":true},{"title":"White Industries \/ Sram","offer_id":46774815293783,"sku":"PEAK.4550.DB.WI.BOB.SR.CL","price":3199.0,"currency_code":"EUR","in_stock":true},{"title":"Industry Nine \/ Shimano","offer_id":46774814048599,"sku":"PEAK.4550.DB.IN.BOB.SH.CL","price":3199.0,"currency_code":"EUR","in_stock":true},{"title":"Industry Nine \/ Campagnolo","offer_id":46774815326551,"sku":"PEAK.4550.DB.IN.BOB.CA.CL","price":3199.0,"currency_code":"EUR","in_stock":true},{"title":"Industry Nine \/ Sram","offer_id":46774815359319,"sku":"PEAK.4550.DB.IN.BOB.SR.CL","price":3199.0,"currency_code":"EUR","in_stock":true},{"title":"Tactic TR01 \/ Shimano","offer_id":46774814081367,"sku":"PEAK.4550.DB.TACTIC.BOB.SH.CL","price":4199.0,"currency_code":"EUR","in_stock":true},{"title":"Tactic TR01 \/ Campagnolo","offer_id":46774815392087,"sku":"PEAK.4550.DB.TACTIC.BOB.CA.CL","price":4199.0,"currency_code":"EUR","in_stock":true},{"title":"Tactic TR01 \/ Sram","offer_id":46774815424855,"sku":"PEAK.4550.DB.TACTIC.BOB.SR.CL","price":4199.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0756\/5403\/7847\/files\/PCW_PEAK_EVO2_BLACK_GLOSS-1-scaled.jpg?v=1783589884","url":"https:\/\/shop.approvedcycling.com\/products\/road-bike-disc-wheels-pcw-peak-4540","provider":"Approved Cycling","version":"1.0","type":"link"}