This 15-tooth front sprocket uses 20CrMoTi chromium-molybdenum alloy steel for the VOGE RR660S 525-chain drivetrain. Model-specific spline, offset and retainer geometry preserve the intended chain line, while deep-carburized teeth provide a hard contact surface for repeated roller engagement.
The order record includes model year, chain series, spline, offset, retainer and current gearing.
FIT CONTROL
525 Chain Fit Also Requires The Correct Spline And Offset
A 525 designation identifies the chain interface, but it does not define the transmission spline, sprocket offset or retainer geometry.
The 15T RR660S front sprocket fits only when the 525 tooth width, output-shaft spline, offset, retainer and chain line all match the vehicle configuration.
01
525 Tooth Width Matches The Drive Chain
The tooth profile must seat the 525 chain rollers without side interference, incorrect width or cross-series mixing.
02
RR660S Shaft Geometry Controls Installation
The output-shaft spline, sprocket offset, installation direction and retainer must reproduce the verified RR660S interface and chain line.
GEARING EFFECT
15 Teeth Preserve The RR660S Baseline Final-Drive Input
Front and rear sprocket tooth counts determine the final-drive ratio, so the smaller front sprocket has a direct effect on wheel torque and engine speed.
The 15-tooth configuration preserves the RR660S reference input; any different tooth count requires a new check of chain length, adjustment range, clearance and vehicle behavior.
15TRR660S Front Reference
525Matching Chain Series
Same Tooth CountLike-For-Like Replacement
Different Tooth CountValidated Drivetrain Change
TOOTH CONSTRUCTION
Carburized 20CrMoTi Teeth Balance Wear And Repeated Load
A motorbike front sprocket combines repeated roller contact at the tooth surface with torque and shock loading through the hub.
Deep-carburized 20CrMoTi uses an HRC 58-60 tooth-surface target for wear control while retaining an alloy-steel core for repeated drivetrain load.
Quenching, high-temperature tempering and deep carburizing
Tooth-Surface Hardness
HRC 58-60 target
Tooth-Profile Error
≤ 0.03 mm
Mounting Interface
RR660S output-shaft spline, model-specific offset and retainer geometry
Finish
Black multi-layer protective surface
Traceability
Model, chain series, tooth count, material heat and inspection lot
Packaging Unit
Individual rust-protective pack inside an export carton
ПРИЛОЖЕНИЯ
Three Uses For The RR660S 15T Front Sprocket
The configuration supports standard replacement, complete 525 drivetrain service and documented aftermarket supply for the RR660S.
01
Like-For-Like RR660S Replacement
The 15T count and model-specific shaft interface reproduce the verified front-sprocket input when the motorcycle remains on its approved 525 setup.
02
Matched 525 Drivetrain Service
The front sprocket can be ordered with a matching 525 chain and rear sprocket after all three components are checked for size, tooth count and wear.
03
Model-Specific Aftermarket Supply
Distributors and repair networks can source the part against a controlled record containing vehicle, tooth count, chain series, spline, offset and retainer details.
MATERIALS & MANUFACTURING
20CrMoTi Steel, Deep Carburizing And Precision Teeth
The compact front sprocket uses alloy steel, controlled tooth machining and a hardened contact layer to carry repeated 525-chain engagement.
20CrMoTi Alloy-Steel Body
Chromium-molybdenum alloy steel carries torque from the RR660S output shaft through the 15-tooth sprocket.
Deep-Carburized Tooth Surface
Quenching, high-temperature tempering and deep carburizing establish an HRC 58-60 tooth-surface target for wear control.
Five-Axis Tooth-Profile Machining
Controlled machining holds tooth-profile error to 0.03 mm or less and supports consistent roller seating.
PERFORMANCE & WORKING CONDITIONS
15T Geometry For A 525 RR660S Drivetrain
Tooth count, roller interface, chain line, lubrication and the condition of the complete final drive determine operating results.
15TFront Tooth Count
525Drive Chain Series
HRC 58-60Tooth-Surface Target
≤ 0.03 mmTooth-Profile Error
Working InterfaceLubricated 525 motorcycle drive chain with correctly seated rollers
Vehicle FitVOGE RR660S with matching output-shaft spline, offset, retainer and cover clearance
Load PatternRepeated engine torque and chain engagement at the 15-tooth front position
Installation LimitsChain line, full-travel clearance, chain slack and fastener torque follow the vehicle service specification
USE & SAFETY INSTRUCTIONS
Four Checks For Front-Sprocket Replacement
The replacement sequence protects the output shaft, chain line, retainer and the complete chain-and-sprocket system.
01
Record The Existing Drivetrain Configuration
Confirm vehicle year and version, chain series, chain length, front and rear tooth counts and any drivetrain modification before disassembly.
Verify the installed chain marking and width
Record the 15T front and current rear tooth counts
Photograph spacer, retainer and installation direction
02
Inspect The Output Shaft And Mating Parts
Clean the accessible area and inspect the spline, retainer, nut or plate, seal region, cover and guides for damage.
Stop if the output-shaft spline is damaged
Replace single-use locking hardware as specified
Keep abrasive debris away from the shaft seal
03
Install With The Verified Offset And Retainer
Place the sprocket in the documented orientation and use the vehicle procedure for locking and tightening the retainer.
Confirm the sprocket seats fully on the spline
Align the front and rear sprockets
Use the vehicle-specified fastener torque and locking method
04
Check The Complete Final Drive Before Riding
Inspect chain seating, full-rotation tight spots, slack, wheel alignment, cover clearance and retainer security before road use.
Replace a worn chain or rear sprocket under the applicable service policy
Rotate the rear wheel by hand and listen for abnormal engagement
Recheck the retainer and chain adjustment after installation
Engine-Off Service Required Isolate the ignition and prevent unintended vehicle movement before working near the chain and sprockets. Use the RR660S service procedure and suitable locking tools; never use engine power to loosen, install or inspect the front sprocket.
PURCHASING CONDITIONS
Standard Terms For An RR660S 15T Sprocket Order
A controlled drawing and fit record is approved before samples and production use the same chain series, tooth count, material and mounting interface.
Production MOQ: 100 PiecesThe production lot follows the approved RR660S-F15-525 specification.
Paid Sample: 1 PieceThe sample verifies spline, offset, retainer, chain line and tooth geometry.
Sample Lead Time: 7-10 Business DaysTiming begins after the drawing and fit record are approved.
Production Lead Time: 25-35 DaysTiming begins after sample or drawing approval and deposit receipt.
Price Basis: FOB NingboAlternative Incoterms can be quoted for the destination and shipment size.
Rust-Protective Export PackingEach sprocket uses an individual protective pack inside a labeled export carton.
Payment: 30% DepositThe remaining 70% is due before shipment after production inspection.
Shipping: Courier, Air Or SeaShipment selection uses the order quantity, destination and required arrival date.
PRE-SALES & AFTER-SALES SERVICE
Fit Review, Production Inspection And Replacement Support
The technical record follows the part from vehicle-fit review through material control, dimensional inspection and repeat-order matching.
RR660S Fit Record Before Sampling
Vehicle version, 525 chain, 15T count, spline, offset, retainer, installation direction and cover clearance are reviewed before sample release.
Material, Hardness And Tooth-Profile Inspection
Production inspection covers material heat traceability, tooth-surface hardness, tooth count, profile, runout, finish and packaging.
Lot Records Support Repeat Orders
Model, drawing revision, material heat and inspection lot identify the approved configuration for replacement and repeat purchasing.
Hangzhou Zhizheng Technology Co., Ltd. develops and manufactures chain-drive systems and components in Hangzhou, Zhejiang, China.
Manufacturing and inspection view 1Manufacturing and inspection view 2Manufacturing and inspection view 3
Компания Hangzhou Zhizheng Technology Co., Ltd.
Manufacturing capability covers chain-drive component development, sprocket machining, heat treatment, surface processing and production inspection. Material, hardness, tooth profile, runout and lot records support model-specific supply.
Chain-drive component and sprocket development
Tooth-profile machining and heat-treatment control
Hardness, dimensional and runout inspection
Model, drawing, material-heat and lot traceability
MANUFACTURING RECOGNITION
Company Manufacturing Recognition Display
The company recognition display accompanies the manufacturing, inspection and traceability information for chain-drive component supply.
Company manufacturing recognition display
REQUEST A TECHNICAL QUOTE
Send The Bike Model, Chain Size And Tooth Count
+86-0571-88620207
motomax@sfrchain.com
WhatsApp: +86-18857878411
No. 271, Shuyun Road, Cangqian Street, Yuhang District, Hangzhou City, Zhejiang Province, People's Republic of China
RELATED PRODUCT
VOGE 525-Street Chain And Sprocket Configuration
The related 525-Street product provides another VOGE application for comparing tooth counts and complete chain-and-sprocket fit.
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