60 年代 BMW R69S 稀有真品原廠排氣管 (一對)

RARE: 1960s BMW R69S Genuine Original Mufflers (A Pair)
 
【Description】 This is an extremely rare pair of Genuine Original 1960s BMW R69S mufflers. For the collector performing a "factory correct," concourse-level restoration, these are the essential, irreplaceable components.
 
Their authenticity is confirmed by several key manufacturing details absent on modern reproductions.
 
【Condition Note】 This pair shows some minor spots of rust (corrosion), as is consistent with their 60+ year age. Please review all photos for the exact condition.
 
【Authentication Details (How to Identify Genuine)】
Hanger Stamps & Spot Welds: This is a correct, matched pair. One mounting hanger is stamped "21"; the other is stamped "63". The hangers are attached to the muffler body using 6 distinct spot welds, not the continuous seam weld found on reproductions.
Upper Forward Recess: The upper forward recess is die-pressed. The floor of this recess is distinctly flat (not rounded) and features two characteristic parallel press marks (tooling marks) from the original stamp.
Inboard Recess (Forward of Hanger): On the inboard side (wheel side), forward of the main hanger, there is another curved, "scooped" recess. This recess clearly contains two smaller, secondary indentations within it, another hallmark of the original factory tooling.
Rear Axle Clearance Scallop: Located near the rear hanger is the critical curved recess (scallop) designed for rear axle clearance. This complex pressing is a detail often omitted from reproductions due to high manufacturing costs.
1960s Hand-Welds: As a mark of their 1960s production, these mufflers were hand-welded. The weld beads exhibit the slight, authentic imperfections and irregularities characteristic of manual welding from that era, clearly distinguishing them from the uniform, machine-like welds on modern copies.
 
This is a fantastic pair of Genuine R69S mufflers, exhibiting all the correct and intricate details of original factory production. For the most discerning restoration, these are the only correct choice.
 
稀世珍品：1960 年代 BMW R69S 真品原廠排氣管 (一對)
【說明】 這是一對極為罕見的 1960 年代 BMW R69S 真品 (Genuine) 排氣管。對於追求「工廠級」完美修復 (Concourse-level) 的收藏家來說，這是不可或缺的關鍵部件。
這對排氣管的真實性，可以從以下幾個原廠製造的關鍵特徵中得到證實，這些特徵是現代複製品 (Reproductions) 所沒有或無法複製的。
 
【狀況說明】 這對排氣管保存狀態良好，但如照片所示，有少部分生鏽 (corrosion)，這與它們超過半世紀的歷史完全相符。請仔細檢閱所有照片以了解確切狀況。
 
【真品鑑別細節 (如何辨識真品)】
吊耳鋼印與點焊 (Hanger Stamps & Spot Welds): 這是一對正確的「原廠配對」。一支排氣管的吊耳鋼印為 "21"；另一支則為 "63"。吊耳本體使用 6 個獨立的壓焊點 (spot welds) 固定，而非現代複製品常用的連續邊緣焊接 (seam weld)。
前端上方凹槽 (Upper Forward Recess): 前端上方的凹槽是特殊模具壓製的。其底面是獨特的「平片狀(flat floor)」（非圓弧），並帶有兩道平行的原廠模具壓痕 (tooling marks)。
吊耳前端內側凹槽 (Inboard Recess - Forward): 在主吊耳前端的內側 (靠近車輪側)，有另一個弧形凹槽 (scooped recess)，內部還帶有兩道更小的凹陷壓痕，這也是原廠模具的特徵。
後輪軸閃避槽 (Rear Axle Clearance): 在吊耳後上方，有一個關鍵的圓弧形凹槽 (scallop)，其功能是閃避後輪軸。這是高成本的複雜壓製工序，複製品大多會省略此細節。
60 年代手工焊道 (1960s Hand-Welds): 作為 60 年代的產物，這些排氣管是手工焊接的。仔細檢查，焊道呈現出那個年代手工藝特有的、輕微且真實的不平整與不規則感，這與現代複制品完美的均勻焊道截然不同。
 
這是一對細節完整、特徵正確、極具收藏價值的「真品」R69S 排氣管。對於最頂級的修復專案來說，這是唯一正確的選擇。
 
https://m8.com.tw/bmwr69s-m